TY - JOUR AU - S. G. Dalalyan TI - $S$-universality in $2$-categories JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 2011 SP - 39 EP - 44 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_2011_2_a6/ LA - en ID - UZERU_2011_2_a6 ER -