TY - JOUR AU - V. I. Tsygankov TI - Equations of $G$-minimal conic bundles with degree $4$ JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2010 SP - 39 EP - 42 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2010_2_a6/ LA - ru ID - VMUMM_2010_2_a6 ER -