@book {578,
	title = {Atlas microflora of the Upper Carboniferous and Lower Permian of the Donetz Basin. [in Russian]},
	year = {1976},
	pages = {159},
	publisher = {Nedra},
	organization = {Nedra},
	address = {Moskow},
	author = {Inosova, K.N. and Krusina, A.X. and Shwartsman, E.R.}
}
