TY - JOUR AU - P. M. Akhmet'ev TI - $\operatorname{Prem}$-mappings, triple self-intersection points of oriented surfaces, and the Rokhlin signature theorem JO - Matematičeskie zametki PY - 1996 SP - 803 EP - 810 VL - 59 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1996_59_6_a0/ LA - ru ID - MZM_1996_59_6_a0 ER -