@booklet {5953,
	title = {TKACHUK, L.G. 1987. Genesis of the Yastrebets syenite massif. Geologicheskii Zhurnal, 47: 106-11.},
	year = {1987},
	note = {TKACHUK, L.G. 1987. Genesis of the Yastrebets syenite massif. Geologicheskii Zhurnal, 47: 106-11.}
}
