Boissier, E.1867: Flora Orientalis, Vol. 1.- Genevae & Basiliae.
                                                                                                                Bor, N. L. 1970: Gramineae in K. H. Rechinger (ed.) Flora Iranica 70. - Graz.
                                                                                                                Coode, M. J. & Cullen, J. 1967: Silene in P. H. Davis (ed.) Flora of Turkey 2: 179-242. - Edinburgh.
                                                                                                                Cullen, J. 1067: Cerastium in P. H. Davis (ed.) Flora of Turkey 2: 73-85. - Edinburgh.
                                                                                                                Davis, P. H. 1965: Aconitum in P. H. Davis (ed.) Flora of Turkey 1: 106 - 108. - Edinburgh.
                                                                                                                - et al. 1965: Anemone in P. H. Davis (ed.) Flora of Turkey 1: 134 - 138. - Edinburgh.
                                                                                                                Grossheim, A. A. 1950: Flora Kavkaza Vol. 4 (in Russian). - Moskva & Leningrad.
                                                                                                                Hedge, I. C. 1968: Lepidium in K. H. Rechinger (ed.) Flora Iranica 57: 63 -Graz.
                                                                                                                Jansson, C. A. & Rechinger, K. H.1970 : Crassulaceae in K. H. Rechinger (ed.) Flora Iranica 72. - Graz.
                                                                                                                Rechinger, K. H. 1970: Asclepiadaceae in K. H. Rechinger (ed.) Flora Iranica - Graz.
                                                                                                                Schiman - Czeika, H. 1967: Gentianaceae in K. H. Rechinger (ed.) Flora Iranica 41. - Graz.
                                                                                                                 
                                                                                                                Schonbeck - Temesy, E. 1970: Geraniaceae in K. H. Rechinger (ed.) Flora Iranica 69. - Graz.
                                                                                                                Shishkin, B. K. 1936: Cerastium in V. L. Komarov (ed.) Flora of the U.S.S.R. (in Russian) 6: 430 - 466. - Moskva & Leningrad.
                                                                                                                - & Bobrov, E. G. 1952: Androsace in K. Shishkin & E. G. Bobrov (eds.) Flora of the U.S.S.R. (in Russian) 18: 218 - 242. - Moskva & Leningrad.
                                                                                                                Shteinberg, E. I. 1937: Aconitum in V. L. Komarov (ed.) Flora of the U.S.S.R. (in Russian) 7: 183 - 236. - Moskva & Leningrad.
                                                                                                                Wendelbo, P. 1965: Primulaceae in K. H. Rechinger (ed.) Flora Iranica 9. - Graz.
                                                                                                                Yuzepchuk, S. V. 1937: Pulsatilla in V. L. Komarov (ed.) Flora of the U.S.S.R. (in Russian) 7: 285 - 307. -Moskva & Leningrad.