TY - JOUR AU - V. V. Goldberg TI - On the theory of 4-webs of multidimensional surfaces on a~differentiable manifold $X_{2r}$ JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1977 SP - 118 EP - 121 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1977_11_a15/ LA - ru ID - IVM_1977_11_a15 ER -