D.Ž . Gajić, "Udarni talasi u Kosmosu", Klub NT,
D.Ž . Gajić, "Fizika Sunca", Prosveta i PMF, Niš, 2005, str. 270.
D.Ž . Gajić, Lj. Stevanović, "Zbirka zadataka iz teorijske mehanike", PMF, Niš, 2009, str. 291.
B.S. Milić, D.Ž . Gajić, "The significance of off-resonance terms for ion-cyclotron modes at lower harmonics in weakly-ionized plasmas with Te/Ti<10, Plasma Physics and Controlled Fusion 33 (1991) 1161-1185.
B.S. Milić, D.Ž . Gajić, "Excitation of QPESIC instabilities in weakly ionized plasmas placed in non-parallel fields", Physica Scripta 45 (1992) 264-274.
B.S. Milić, D.Ž . Gajić, "On the kinetic theory of QPEMIC instabilities in weakly ionized plasmas placed in non-parallel fields", Physica Scripta 50 (1994) 542-549.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž . Gajić, "Evaluation of Plasma composition and Mobilities in Argon Plasma with Chlorine as Additive", Contrib. Plasma Phys. 38 (1998) 5-6, 623-628.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž . Gajić, "Evaluation of transport coefficients in plasmas containing argon and sodium", Europhysics Letters 44 (1998) 4, 454-458.
N.V. Novaković, S.M. Stojilković, B.S. Milić, D.Ž . Gajić,"Contribution to the evaluation of transport coefficients in plasmas containing krypton and sodium", Czech. J. Phys. 48 (1998) 12, 1569-1574.
N.V. Novaković, S.M. Stojilković, B.S. Milić, D.Ž . Gajić, "Electron and ion mobilities in argon plasma with fluorine as additive", Czech. J. Phys. 50 (2000) 3, 425-432.
N.V. Novaković, S.M. Stojilković, D.Ž . Gajić, "Some transport characteristics in plasmas in the mixtures of xenon, argon and caesium", J. Plasma Physics 71 (2005) 6, 889-897.
B.S. Milić, D.Ž . Gajić, "On the possibility of the threshold drift inversion in QPESIC instabilities in weakly ionized plasmas with electric current flowing along the magnetic lines of force", Facta Universitatis, Series: Physics,Chemistry and Technology 1 (1994) 3-11.
D.Ž. Gajić, B.S. Milić, "Some characteristics of the ion-ion hybrid instability in weakly ionized two-ion plasmas", Facta Universitatis, Series: Physics, Chemistry and
Technology 1 (1994) 12-17.
N.V. Novaković, S.M. Stojilković, B.S. Milić, D.Ž . Gajić, "Some transport properties in plasmas containing argon and fluorine", Facta Universitatis, Series: Physics, Chemistry and Technology 2 (2003) 5, 285-291.
D. Simić, D. Gajić, "Kinetic theory of electrostatic ion cyclotron waves (QPESIC) in multicomponent plasmas with negative ions", Facta Universitatis, Series: Physics,Chemistry and Technology, Vol. 5, No1, 2007, pp. 45-55.
D.Ž. Gajić, "Potencijalni kvazi-transverzalni jono-ciklotronski talasi u beskolizionoj plazmi u neparalelnim poljima E0 i B0", Zbornik radova Filozofskog fakulteta u Nišu, Serija fizika i hemja 1 (1988) 25-34.
B.S. Milić, D.Ž . Gajić, "Uticaj nerezonantnih članova u disperzionoj jednačini na karakteristike kvazi-perpendikularne elektrostatičke jono-ciklotronske nestabilnosti u dugotalasnom području kod slabo jonizovane plazme", Zbornik radova Filozofskog fakulteta u Nišu, Serija fizika 1 (1990) 3-26.
B.S. Milić, D.Ž . Gajić, "Spontaneous excitation of quasi-perpendicular electromagnetic ion-cyclotron waves in collisionless plasmas placed in constant and non-parallel electric and magnetic fields", Contributed Papers, 13th SPIG, (Šibenik, 1986) pp. 537-540.
D.Ž. Gajić, B.S. Milić, "The comparison of threshold electron drifts for spontaneous onset of electrostatic and electromagnetic ion-cyclotron waves in collisionless plasmas placed in constant and non-parallel electric and magnetic fields", Contributed Papers, 14th SPIG, (Sarajevo, 1988) pp. 522-525.
D.Ž. Gajić, B.S. Milić, "On the kinetic theory of the electrostatic ion-cyclotron instability in collisionless plasmas placed in constant and non-parallel electric and magnetic fields", Contributed Papers, 19th ICPIG, (Beograd, 1989) pp. 786-787.
B.S. Milić, D.Ž . Gajić, "On the significance of the ionic off-resonance terms for excitation of electrostatic ion-cyclotron instability in two-ion plasmas", Contributed Papers, 15th SPIG, (
B.S. Milić, D.Ž . Gajić, "Long-wave electrostatic ion-cyclotron instability in weakly ionized plasmas placed in non-parallel stationary magnetic and
D.Ž. Gajić, B.S. Milić,"On the excitation of QPEMIC instabilities in weakly ionized plasmas placed in non-parallel fields", Contributed Papers, 21st ICPIG, (
D.Ž. Gajić, B.S. Milić, "On the kinetic theory of the ion-ion hybrid waves and instabilities", Contributed Papers, 16th SPIG, (
B.S. Milić, D.Ž . Gajić, , "Threshold drift inversion in spontaneous excitation of QPESIC instabilities at various IC harmonics", Contributed Papers, 16th SPIG, (
B.S. Milić, D.Ž . Gajić, "QPESIC instabilities in weakly ionized two-ion plasmas with different ion temperatures and", Contributed Papers, 17th SPIG, (
D.Ž. Gajić, B.S. Milić, "Comparision of basic properties of QPESIC and QPESIIH modes in two-ion weakly ionized plasmas", Contributed Papers, 17th SPIG, (Beograd, 1994) pp. 362-365.
D.Ž. Gajić, B.S. Milić, "Spontaneous excitation of QPESIIH instabilities in weakly ionized two-ion plasmas with different ion temperatures", Contributed Papers 3, 22th ICPIG (Hoboken, New Jersey, 1995) pp. 57-58.
N.R. Brajušković, D.Ž. Gajić, B.S. Milić, "Basic characteristics of QPESIC modes in weakly ionized plasmas containing singly, doubly and triply charged ions", Contributed Papers, 18th SPIG, (Kotor, 1996) pp. 556-559.
D.Ž. Gajić, B.S. Milić, "Kinetic theory of spontaneous excitation of the longwave QPESIIH instabilities in weakly ionized plasmas", Contributed Papers, 18th SPIG, (Kotor, 1996) pp. 560-563.
D.Ž. Gajić, B.S. Milić, "On the influence of relative ion concentrations on QPESIC modes in weakly ionized plasmas with singly, doubly and triply charged ions", Contributed Papers 1, 23th ICPIG, (
D.Ž. Gajić, B.S. Milić, "Some properties of the QPESIC instabilities in weakly ionized plasmas with ions and possessing different temperatures", Contributed Papers 1, 23th ICPIG, (
D.Ž. Gajić, B.S. Milić, "QPEMIC instabilities in weakly ionized two-ion plasmas", Suppl. of the Balkan Phys. Lett. 5 (1997)1423.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž . Gajić, "Electron and ion mobilities in argon plasma with fluorine as additive", Contributed Papers, 19th SPIG, (Zlatibor, 1998) pp. 513-516.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Longwave QPESIC modes in plasmas with ions possessing two temperatures I: higher non-isothermalities", Contributed Papers, 19th SPIG, (Zlatibor, 1998) pp. 709-712.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Longwave QPESIC modes in plasmas with ions possessing two temperatures II: lower non-isothermalities", Contributed Papers, 19th SPIG, (Zlatibor, 1998) pp. 713-716.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Kinetic theory of QPESIC waves in a plasmas with ions A+ and A- having different temperatures", Contributed Papers, 20th SPIG, (Zlatibor, 2000) pp. 543-546.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "QPESIC waves and instabilities in plasmas with one sort of light positive and one sort heavy negative ions having different temperatures", Contributed Papers, 21st SPIG, (Sokobanja, 2002) pp. 621-624.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž. Gajić, "Diffusion coefficients of low-pressure and low-temperature thermal argon plasma with chlorine as additive", Contributed Papers, 21st SPIG, (Sokobanja, 2002) pp. 609-624.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Kinetic theory of QPESIC waves in collision plasmas with negative ions", BPU-5: Fifth General Conference of the Balkan Physical Union, (Vrnjačka Banja, 2003) pp.1177-1180.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž. Gajić, "Diffusion coefficients of low-pressure thermal argon plasma with fluorine as additive", BPU-5: Fifth General Conference of the Balkan Physical Union, (Vrnjačka Banja, 2003) pp. 1057-1060.
D. Simić, D.Ž. Gajić, "Short Wave Instabilities of Electrostatic Ion-Cyclotron Waves in the Complex Plasma", Contributed Papers, 23th SPIG, (
D.Ž. Gajić, B.S. Milić, "Specifičnosti dugotalasnog dela jon-jonske hibridne mode u zamagnetisanoj plazmi sa jonima A+ i A++", Zbornik radova IX kongresa fizičara Jugoslavije, (Petrovac na Moru, 1995) str. 377-380.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Kinetička teorija KPJC talasa u plazmi sa A+ i A- jonima istih temperatura", Zbornik radova 10. kongresa fizičara Jugoslavije - II knjiga, (Vrnjačka Banja, 2000) str. 737-740.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž. Gajić, "Korišćcenje Landauove dužine pri izračunavanju pokretljivosti u termalnoj plazmi", Zbornik radova 10. kongresa fizičara Jugoslavije - II knjiga, (Vrnjačka Banja, 2000) str. 687-690..
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Kinetic theory of QPESIC waves in isothermal ionospheric plasmas with resonant negative ions", Proceedings of the XIII National conference of Yugoslav Astronomers, Belgrade 2002, Publ. Astron. Obs. Belgrade75 (2003) 101-104.
N.V. Novaković, B.S. Milić, S.M. Stojilković, D.Ž. Gajić, "Modifikacija Debye-evog radijusa primenljiva u plazmi i teoriji elektrolita", Kongres fizičara Srbije i Crne Gore, (Petrovac na Moru, 2004) 3 str. 115-118.
D.Ž. Gajić, B.S. Milić, N.V. Novaković, "Uticaj sudarnih procesa na pobuđivanje KPJC talasa u plazmama sa rezonantnim negativnim jonima", Kongres fizičara Srbije i Crne Gore, (Petrovac na Moru, 2004) 3 str. 63-66.