@booklet {6281,
	title = {PUSHKAREV, Yu.D., OSOKIN, A.C., KRAVCHENKO, M.P. and RYUNGENEN, G.I. 1987. Isotope composition of lead and strontium in apatites from the Gremyakha-Vyrmes alkaline massif as a basis for the determination of the age and source of the primary magmatic melt.},
	year = {1987},
	note = {PUSHKAREV, Yu.D., OSOKIN, A.C., KRAVCHENKO, M.P. and RYUNGENEN, G.I. 1987. Isotope composition of lead and strontium in apatites from the Gremyakha-Vyrmes alkaline massif as a basis for the determination of the age and source of the primary magmatic melt. In Abstracts of All-Union School Seminar {\textquoteright}Methods of isotope geology{\textquoteright}. 1-13 December 1987. Moscow. 174-5.}
}
