%0 Journal Article %A A. S. Piloyan %T Conformal correspondence between Friedman type solutions in general relativity and Jordan--Brans--Dicke theory of gravity %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2008 %P 70-75 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2008_3_a9/ %G ru %F UZERU_2008_3_a9