1.   E. Kutlucan (Yazgan), "The Construction of State Models for RLC Networks from the State Model Terminal Equations of Their Subassemblies", MSc Thesis, ODTÜ, 82 pages, August 1973.

2.   E. Yazgan, M.Şafak, "Calculation of the Radiation Patterns of Axially Symmetric Reflectors", 10th European Microwave Conf. Proc., pp.78-83, 8-12 September 1980, Warsaw, POLAND.

3.   E. Yazgan, M. Şafak, "Scattering From Focus-Fed Reflectors", VII.T.B.T.A.K. Seventh Scientific Congress Proc., pp.13-23, October 1980, Kuşadası, TURKEY (In Turkish).

4.  E. Yazgan, "Investigation of Scattering from Microwave Reflector Antennas", Ph.D. Thesis, Department of Electrical and Electronics Engineering, Hacettepe University, 113 pages, Ankara, TURKEY, June 1981 (In Turkish).

5.  E. Yazgan, M. Şafak, "High-Frequency Scattering From Offset Reflectors", IEE Sec. International Conf. on Antennas and Prop. Proc., pp.265-268, 13-16 April 1981, York, ENGLAND.

6.  M. Şafak, E. Yazgan, "Investigation of Focus-Fed Symmetrical Microwave Antennas", TUBITAK Project MAG-473, 103 pages, Final Rept., H.U., 1982 (In Turkish).

7.  M. Şafak, E. Yazgan, "Investigation of Focus-Fed Symmetrical Microwave Antennas", Natural Science Publication, vol.7, No.3, pp.196-203, 1983 (In Turkish).

8.   E. Yazgan, M. Şafak, "GTD Analysis of Offset Reflector Antennas with Offset Feeds", 7th Colloquium on Microwave Communication Proc. Vol. II, pp.15/K-19/K, 6-10th Sept. 1982, Budapest, HUNGARY.

9.    E. Yazgan, M. Şafak, "Unified Analysis of Radiation Patterns for Dual-Reflector Antennas", IEEE MELECON-83, Proc., Vol.I., B4/13-15, 24-26 May 1983, Athens, GREECE.

10. E. Yazgan, "Utilization of Solar Energy in Turkey", Electrical Engineering Publication, No:300, pp.108-111, 1983 (In Turkish).

11. E. Yazgan, M. Şafak, "Polarization Losses of Reflector Antennas with Asymmetric Feed Patterns", Proc. of the 2nd METU International Symposium on Antennas, Propagation, Microwaves and Electromagnetic Theory, pp.138-147, Ankara, TURKEY, October 1983.

12. E. Yazgan, "UTD Analysis of Offset Reflector Fed From Off-Focus", Proc. of JIEEEC'85 Conf., JORDAN, April 1985.

13. M. Şafak, E. Yazgan, "Polarization Losses in Reflector Antennas", IEEE Trans. on Antennas and Propagation, AP-33, No.8, pp.899-903, August 1985.

14. E. Yazgan, "High-Frequency Analysis of Off-Focus-Fed Axisymmetric Antennas", Proc. of IEEE MELECON'85 Conf., pp.207-211, Madrid, SPAIN, October 1985.

15. E. Yazgan, "A Compact Form of UTD For Hyperboloidal and Ellipsoidal Antennas", International Symposium on Antennas and Propagation Proc., pp.907-910, Kyoto, JAPAN, August, 1985.

16. E. Yazgan, M. Şafak, "Polarization Losses of Reflector Antennas with Asymmetric Feed Patterns", Proc. of International Symposium on Antennas and EM Theory ISAE'85, pp.110-112, Beijing, CHINA, August, 1985.

17. H. Göksel, E. Yazgan, "A Rim Loaded Spherical Reflector Antenna", Proc. of International Symposium on Antennas and EM Theory ISAE'85, pp.811-814, Beijing, CHINA, August, 1985.

18. E. Yazgan, H. Serbest, "Backward Radiation of Cylindrical Reflector with Circular Cross Section", Proc. of Int. Electrical Eng. Conference, pp.52-57, Adana, TURKEY, Sept. 1985. (In Turkish).

19. H. Göksel, E. Yazgan, "Effect of Surface Loading on Reflector Antennas with Circular Cross Section", Proc. of Int. Electrical Eng. Conference, pp.58-62, Adana, TURKEY, Sept. 1985. (In Turkish).

20. E. Yazgan, "Radiation Pattern of Rim a Loaded Ellipsoidal Antenna", URSI International Symposium on Electromag. Theory, Proc., Budapest, HUNGARY, August 1986.

21. E. Yazgan, "High-Frequency Methods in Near-Field of a Symmetrical Paraboloidal Reflector", Proc. of Int. Symposium on Antennas, JINA-86, pp.103-105, Nice, FRANCE, November 1986.

22. E. Yazgan, "Scattering From Plane Target and Polarization Effect", VIII. International Physics Conference, Proc., pp.187-188, METU, Ankara, TURKEY, Sept. 1986 (In Turkish).

23. E. Yazgan, M. Şafak, "Comparison of UTD and UAT in Axially Symmetric Reflectors", IEEE Trans. on Antennas and Propagat., vol AP-35, No.1, pp.113-116, January 1987.

24. E. Yazgan,"The Radiation Pattern of a Surface Loaded Ellipsoidal Reflector", IEEE Trans. on Antennas and Propagat., Vol AP-35, No.3, pp.437-439, March 1987.

25. E. Yazgan, "Analysis of Off-Focus Fed Paraboloidal Reflector Using Equivalent Feed", 2nd International Electrical Eng. Conference, Proc., pp.C.29-1, METU, Ankara, TURKEY, Sept. 1987 (In Turkish).

26. E. Yazgan, Y. Demirburan, "Optical Fiber and Optical Communication", Electrical Engineering Publication, No:343, pp.101-109, May 1987 (In Turkish).

27. L. Ertaul, E. Yazgan, "A Spread Spectrum Communication System", Electrical Engineering Publication, No:32/45, pp.162-166, July 1987 (In Turkish).

28. E. Yazgan, "Microstrip Antennas", Electrical Engineering Publication, Vol.32, No.348, pp.262-268, November 1987 (In Turkish).

29.  S. Kulaç, E. Yazgan, "Radar", Electrical Engineering Publication, Vol.32, No.349, pp.308-314, December 1987 (In Turkish).

30. E. Yazgan, "A Simple Formulation of UTD for Some Reflector Antennas", International Journal of Electronics, England, Vol.66, No.2, pp.283-288, 1989.

31. E. Yazgan, H. Göksel, "The Effect of Surface Loading on The Radiation Pattern of a Spherical Reflector", IEEE Trans. on Electromagnetic Compability, Vol.30, No.4, pp.561-563, November 1988.

32. E. Yazgan, "Communication in Optical Fibers", Standard Economic And Technical Journal, Vol.27, No.314, pp.67-69, February 1988 (In Turkish).

33. E. Yazgan, "Analysis of Uniform Asymptotic Theory in Reflector Antennas", Proc. of Summer School on Microwave Reflector Antennas, pp.1-22, TUBITAK, Adana, TURKEY, September 1988 (In Turkish).

34. E. Yazgan, Y. Işık, "Crosspolarization Efficiency Using Equivalent Feed Method", 3rd International Elec. Eng. Conf. Proc., pp.269-272, ITU, Istanbul, TURKEY, September 1989 (In Turkish).

35. E. Yazgan, "The Effect Of Axial Shift On Parabolic Reflector", 12. National Physics Conference Proc., pp.96, September 1990, İzmir, TURKEY.

36. B. Saka, E. Yazgan, "Thick Film 35 db 50W Attenuator", COMCONEL'90 Communications, Control and Electronics Conf. Proc. pp.251-256, December 1990, Cairo, EGYPT.

37. E. Yazgan, "Design Considerations on a Microwave Digital Radio Communication System", Part I, Tech. Rept. on TAFICS, 33 pg., Defence Industry Undersecretary, January 1991, Ankara, TURKEY.

38. B. Saka, E. Yazgan, "Thick Film High Power Attenuators", IEEE MELECON'91 Proc., pp.121-124, May 1991, Ljubljana, YUGOSLAVIA.

39. E. Yazgan, B. Saka, "Odak Dışı Beslemenin Reflektör Performansında Önemi," 4th National Elec. Eng. Conference, Proc., pp.421-424, September 1991, İzmir, TURKEY.

40. E. Afacan, E. Yazgan, "Target Detection in Low Altitude Radars by High Frequency Methods", 4th National Elec. Eng. Conf. Proc., pp.388-391, Sept. 1991, İzmir, TURKEY (In Turkish).

41. E. Afacan, E. Yazgan, "Modelling of Mountains as Wedges in Communications", International Symposium on "Communication Theory & Applications"  Proc., Sept. 1991, Warwick, ENGLAND.

42.  E. Yazgan, "Design Considerations on a Microwave Digital Radio Communication System", Part II, Digital Radio Antenna Systems, 36 pg., Defence Industry Undersecretary, April 1991, Ankara, TURKEY.

43. E. Yazgan, "Design Considerations on a Microwave Digital Radio Communication System", Part III, Principles of System Design, 40 pg., Defence Industry Undersecretary, April 1991, Ankara, TURKEY.

44. E. Yazgan, H. Bodur, "Receiver Optimization with Suitable IF-BW Selection in Heterodin Optic Receivers", IEEE, BILKON-91, Bilkent University, Electrical-Electronics and Computer Eng. Conf., Proc., pp.213-217, July 1991, Bilkent, Ankara, TURKEY.

45. E. Afacan, E. Yazgan, "Target Detection in Mountainous Areas", Tenth Anniversary Symposium, Department of Aeronautical Engineering Proc., pp.407-416, June 1992, METU, Ankara, TURKEY (In Turkish).

46. E. Yazgan, "Repeater Design in Digital Radio Communication Systems", Part IV, 30 pg., Defence Industry Undersecretary, Sept 1991, Ankara, TURKEY.

47. E. Yazgan, "Performance Calculations and Protection  Problems on Digital Radio Communication Systems", TAFICS Rept., Part V, 32 pg., January 1992, Ankara, TURKEY.

48. E. Yazgan, "Frequency Allocations, Interface and Design Problems in Digital Radio Communication Systems", TAFICS-Rept., Part VI, 29 pg., Defence Industry Undersecretary, April 1992, Ankara, TURKEY.

49. E. Afacan, E. Yazgan, "Terrain Effects in High Frequency Scattering", Proc. of International Congress on Computational Methods In Engineering, ICCME-93, Vol.5, pp.97-104, May 3-5, 1993, Shiraz, IRAN.

50. B. Saka, E. Yazgan, "Array Fed Paraboloid Reflector in Satellite Communications," Proc. of International Congress on Computational Methods In Engineering, ICCME,93, Vol.5, pp.191-196, May 3-5, 1993, Shiraz, IRAN.

51. E. Afacan, E. Yazgan, "The Effect of Radar Cross Section and Frequency on the Detection Height of a Target," Proc. of Int. Symposium on Radiowave Propagation, ISRP-93, August 93, Beijing, CHINA.

52. B. Saka, E. Yazgan, "Design Procedure for Multi-Beam Reflector Antennas in Line of Sight Communication Systems," Proc. of  XXIVth General Assembly of the Int. Union of Radio Science, pp.BP-17, Sept. 93, Kyoto, JAPAN.

53. B. Saka, E. Yazgan, "Synthesis of Parabolic Reflector Antenna Patterns Using Optimized Array Feed," Proc. of Third European Conference on Satellite Communications, IEE-93, pp. 50-54, Nov. 93, Manchester, United Kingdom.

54. E. Afacan, E. Yazgan, "Modeling Obstacles as Ellipses  in Low Altitude Radar Propagation," 5th National Elec. Eng. Conf. Proc., pp.459-463, Sept. 1993, Trabzon, TURKEY (In Turkish).

55. B. Saka, E. Yazgan, "Array Fed Parabolic Reflectro Antenna Radiation Pattern," 5th National Elec. Eng. Conf. Proc., pp.454-458, Sept. 93, Trabzon, TURKEY (In Turkish).

56. E. Afacan, B. Saka, E. Yazgan, "Irregular Terrain Modeling for  the Low Altitude Radar Applications," Proc. of IEEE, MELECON-94, pp.387-389, April-94, Antalya, TURKEY.

57. E. Afacan, E. Yazgan, "Modeling Obstacles as Cascaded Ellipses," IEEE AP-S International Symposium and URSI Radio Science Meeting, pp. 1878-1880, June 1994, Seattle, Washington, U.S.A.

58. H. Dindar, ........., E. Yazgan, ......... ,"Elektromanyetik Alan ile Kısa Barsak Sendromlu Ratlarda Adaptasyonun Hızlandırılması," XI. Gevher Nesibe Tıp Günleri Proc., s.28, 19-22 Nisan 93, Kayseri, Türkiye.

59. H. Dindar, ........., E. Yazgan, ......... ,"Uzun Süre Kortizon Alan Ratlarda Inestinal Yara İyileşmesine Elektromanyetik Alanın Etkisi," XI. Gevher Nesibe Tıp Günleri Proc., s.29, 19-22 Nisan 93, Kayseri, Türkiye.

60. H. Dindar, ........., E. Yazgan, ......... ,"Augmentation of Mucasal Adaptation Following Small-Bowel Resection by Electromagnetic Field Stimulation in Rats," Tokai J. Exp. Clin. Med., vol.18, No.1, pp.39-47,1993.

61. H. Dindar, ........., E. Yazgan, ......... ,"The Effect of Electromagnetic Field Stimulation on Corticosteroids-Inhibited Intestinal Wound Heating," Tokai J. Exp. Clin. Med., vol.18, No.1, pp.49-55,1993.
62. B. Saka, E. Yazgan, "Adaptive Beam Forming for Array Feed Parabolic Reflector," Proc. of Int. Symp. of Antennas, JINA 94, pp.540-543, Nov. 94, Nice, France.
63. B. Saka, E. Afacan and E. Yazgan, "A New Beam Steering Antenna For Low Altitude Radar Systems", International Symposium on Elecromagnetic Theory, pp.358-360, URSI 95, St.Petersburg, Russia.

64. B. Saka and E. Yazgan, "Reflector Antenna Pattern  Improvement  Using Optimized Array Feed," Canadian Journal of Physics, Vol. 73, (1995).
65. Ç. Gürel and E. Yazgan, "Bandwidth Widening in Annular Ring Microstrip Antennas with Superstrate," 1995 IEEE/AP-S Int. Symposium and USNC/URSI Radio Science Meeting Proc., .............., Newport Beach, California, U.S.A.

66. E. Afacan, B. Saka, E. Yazgan, "Target Tracking in Low Altitude Radars by Using Reflector Antenna Main Beam Steering," 6th National Elec. Eng. Conf. Proc., pp.........., Sept. 1995, Bursa, Turkey (In Turkish).

67. Ç. S. Gürel and E. Yazgan, "Resonance Analysis of Single Layer Circular Disk and Annular Ring Microstrip Patch Antennas in Spectral Domain," 6th National Elec. Eng. Conf. Proc., pp.,  Sept. 1995, Bursa, Turkey (In Turkish).
68. E. Afacan and E. Yazgan, "The Effect of Loading of Gregorian Antennas on Side Lobe Levels," Can. Journal of Physics (Accepted).

69. E Afacan, E. Yazgan, "Impedance and Irregular Terrain Propagation Model," AGARD-SPP Fall 1995 Symposium on "Digital Communications Systems; Propagation Effects, Technical Solutions, Systems Design", Sept. 1995, Athens, Greece.

70. E. Yazgan, "Application of High Frequency Methods in Satellite Communication and Low Altitude Radars," AFCEA, Armed Forces Communications and Electronics Association Seminar Report, 16 pages, July 1995. (Invited Paper)

71. E. Yazgan, E. Afacan, B. Saka, "Target Detection in Low Altitude Radars due to Topographical Geometry," TÜBİTAK Report EEEAG-35, 86 pages, July 1995.

72. E. Afacan, E. Yazgan, "Efficient Calculation of Fock Scattering Functions", Ord. Prof. Dr. Cahit Arf Math. Semp., Nov. 1995, İstanbul, Turkey

73. B. Saka, E. Yazgan, "Reflector Antenna Performance Improvement", Hacettepe University Research Final Report, 46. pages, H.Ü.92-04-010-009, June 1995.

74. Ç. Gürel, E. Yazgan, "Electromagnetic Analysis of Microwave Integrated Circuits", Hacettepe University Research Final Report, 37.pages, H.Ü.93-01-010-005, Dec. 1995.

75. B. Saka, E. Yazgan, "Receiving Pattern Optimization of a Reflector Antenna with Planar Array Feeds and Cluster Feeds", IEEE Trans. on Antennas and Propagation Vol. 45, No 1 pp 93-97, Jan. 97

76. E. Yazgan, B. Saka, E. Afacan, "Application of Array Feed Reflector Antennas in Low Altitude Radars and Satellite Communication", 1st Symposium of Communication Electronics Information Systems in Military Forces (Invited Paper), pp. 259-269 May 1996, Ankara, Turkey.

77. E. Afacan, E. Yazgan, "A New Method for the Calculation of  Fock Scattering Funtions" Microwave and Optical Technology Letters Vol. 21, No. 3, May. 5, pp. 223-226, 1999.

78. S. Yücesan, .............., E. Yazgan, .............., "The Effects of Electromagnetic Fields Stimulation on Liver Regeneration Inhibited with Actinomycine-D Following 70% Hepatectomy in Rats", Canadian Association of Paediatric Surgeons 27th Annual Meeting, Sept. 1995.

79.  E. Afacan, S. Haşimoğlu, E. Yazgan, T. Çakımcı, E. Boratav, A. H. Erdinç, "Properties of Communication and Radio Propagation in HF", Electrical Eng. Publication, Vol. 399, pp. 46-48, Sept. 96.

80. B. Saka, E. Afacan, E. Yazgan, "Beam Steering Antenna Design for Low Altitude Radar Systems," Journal of Electromagnetic Waves, Vol.11, pp. 215-224, 1997.

81.  Ç. S. Gürel, E. Yazgan, "The Analysis and Design of Ring Type Microstrip Antennas Used in Satellite Communications and Space Vehicles", Proc. of  Technical Developments in Defense Industry Symp., pp. 705-710, 5-6 June 1997.

82.  E. Afacan, E. Yazgan, "Long Term HF Channel Prediciton Method" Proc. of Technical Developments in Defense Industry Symp., pp. 645-650, 5-6 June 1997.

83.  Ç. S. Gürel, E. Yazgan, "Setting Resonance Frequency in Circular Disc Type Microstrip Antennas by Using Air-Gap Control" Proc. of 7th National Elec. Eng. Conf., pp. 304-307, METU, 1997 (In Turkish)

84.  Saka, E. Yazgan, U. Tekkeşin ve A. Er, "Analysis of Gaussian Beam in Reflector Antennas by Gabor Transform Technique", Proc. of 7th National Elec. Eng. Conf., pp.268-271, METU, 1997.

85.  Ç. S. Gürel, E. Yazgan, "Resonant Circular Patch Microstrip Antenna with Air Gap", ANTEM, Canada, August 1998.

86.  E. Yazgan, B. Saka, E. Afacan, "Array Feed Reflector Antenna Analysis by Using Gaussian Beam Techniques", TÜBİTAK Proje No: EEEAG-164, 1998, 38 pages.

87.  E. Yazgan, G. Turgut, E. Afacan, "Application of Finite Element Method in Microstrip Antennas and Microwave Integrated Circuit Structures", Hacettepe University Research Project, Project No: 95.01.010.016, June 1998.

88.  A. Kara, E. Yazgan, "The Effects of Antenna Radiation Pattern on Doppler Spectrum in Mobile Communication Systems", Proc. of JINA-98, pp.647-650, 17-18 November 1998, Nice, France.

89.  E. Afacan, E. Yazgan, "Elliptic Cylinder Modeling of Obstacles for Low Altitude Radar Systems",  Journal of Electromagnetic Waves and Applications, Vol. 13, pp.237-258, 1999.

90.  Ç. S. Gürel, E. Yazgan, "Modified Cavity Model to Determine Resonant Frequency of Tunable Microstrip Ring Antenna", Electromagnetics, pp.443-457, Vol 19, No.5, 1999.

91.  Ç. S. Gürel, E. Yazgan, "Modified Resonant Frequency Calculation for Two-Layered Circular Patch Microstrip Antenna",  AEÜ, Int. J Electron. Commun., pp.155-157, 1999.

92.  E. Afacan, E. Yazgan, "Target Detection and Radar Cross Section in Air Defence Systems",  Porc. of Space, Aeronautics and Defence Tech. Symposium, April 1999, Turkey (In Turkish).

93.  A. Kara, E. Yazgan, "UTD-Based Propagation Model for the Path Loss Characteristics of Cellular Mobile Communications System", Proc. of 1999 IEEE-AP-Int. Symp. And USNC / URSI National Radio Science Meeting, pp. -   Orlando, USA, 1999

94.  Ç. S. Gürel, E. Yazgan, "New Computation of the Resonant Frequency of a Tunable Equilateral Triangular Microstrip Patch", IEEE Trans. Microwave Theory and Techniques, pp.334-338, Vol. 48, No.3, 2000.

95.  Ç. S. Gürel, E. Yazgan, "New Determinatin of Dynamic Permittivity and Resonant Frequency of Tunable Circular Disk Microstrip Structure", Int. Journal of RF and Microwave Computer-Aided Engineering Vol.10, No.2, pp.120-126, 2000.

96.  Ç. S. Gürel, E. Yazgan, "A Simple Method for the Determination of Resonant Frequency of an Annular-Ring Microstrip Antenna with Air Gap", Proc. of 8th National Elec. Eng. Conf., pp.170-173, 1999.

97.  Ç. S. Gürel, E. Yazgan, "Compensation of Superstrate Effects on the Resonant Behaviour of the Microstrip Ring Structure by using an Air Gap Control", IEEE Trans. EMC, (in press).

98.  Ç. S. Gürel, E. Yazgan, "Tunable Resonance in a Superstrate Loaded Lossy Circular Disk Microstrip Structure", Canadian Journal of Physics (accepted for Pub.).

99.  G. Turgut, E. Yazgan, "Electromagnetic Pollution and Related Standards for Human and Communication Systems", Proc. of Electromagnetic Pollution in the Future Information Society, pp.15-20, Nov.1999

100.  Ç. S. Gürel, E. Yazgan, "Resonant Frequency of an Air Gap Tuned Circular Disk Microstrip Antenna", International Journal of Electronics, Vol.87, No.8, pp 973-977, 2000.

101.  Ç. S. Gürel, E. Yazgan, "Simple Determination of Resonant Frequency of Microstrip Ring Antenna with Air Gap", AEÜ, Int. J Electron. Commun., (in press).

102.  E. Afacan, E. Yazgan, "Object Oriented Programming for Electromagnetic Problems", (submitted).