%0 Journal Article %A V. K. Beloshapka %T The orbit space of the automorphism group of a model surface of type $(1,2)$ %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2008 %P 13-16 %N 3 %U http://geodesic.mathdoc.fr/item/VMUMM_2008_3_a2/ %G ru %F VMUMM_2008_3_a2