%0 Journal Article %A S. G. Dalalyan %T $S$-universality in $2$-categories %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2011 %P 39-44 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2011_2_a6/ %G en %F UZERU_2011_2_a6