Authors Year Title
Kotlyar, Zakharov & Kropacheva 1983 Pozdnepermiskii etap evoliutsii organicheskogo mira. Dzhul'finskii i Dorashamskii yarusy SSSR. [G.V.Kotliar, Yu.D.Zakharov, B.V.Koczyrkevich, G.S.Kropatcheva, K.O.Rostovtsev, I.O. Chedia, G.P.Vuks & E.A.Guseva].
Zakharov, Y.D., In: p.56-57, 76-77, 85-86, 93, 106-109, 121-124, 150-157, fig.10-14,pl.14-15, (Nauka) Leningrad.
Kotlyar, Zakharov & Kropacheva 1989 Pozdnepermskii etap evoliutsii organicheskogo mira. Midiinskii yarus SSSR. [Kotliar,G,V,, Zakharov,Yu.d., Kropacheva,G.S., Pronina,G.P., Chediya,I.O. & Burago,V.I.]  (Evolution of the latest Permian biota. Midian stage.)
Zakharov,Y.D., in "Nauka", 64-66, 126-133, figs.9-12, pls.25-26, Leningrad.
Kotlyar, Baud & Pronina 1999 Permian and Triassic exotic limestone blocks of the Crimea. [G.V.Kotlyar, A.Baud, G.Pronina, Yu.D.Zakharov, V.I.Vuks, M.K.Nestell, G.V.Beliaeva & J.Marcoux].
Geodiversitas, 21 (3): 299-323, 7 figs., 1 tab., Paris.
Kotlyar, Popov & Gus'kov 1999 Kungurian/Ufimian Boundary in Pai-Khoy. [G.V.Kotlyar, A.A.Popov, V.A.Gus'kov & S.K.Pukhonto].
Permophiles, 35: 27-29, 3 figs., Boise, ID.
Kotlyar, Zakharov & Polubotko 2004 Late Changhsingian fauna of the northwestern Caucasus Mountains, Russia.
Journal of Paleontology,78:513-527,10 fig., Lawrence, KS.
Zakharov, Oleinikov & Kotlyar 1999 First Find of Early Permian Goniatite in Southern Primorie. [Yu.D. Zakharov, A.V.Oleinikov, G.V.Kotlyar, V.I.Burago, V.S.Rudenko & E.A.Dorukhovskaya].
Geology of Pacific Ocean, 14: 805-816, 5 fig., Singapore.