TY - JOUR AU - V. S. Lenev TI - The family of axial planes of a~two-dimensional net in four-dimensional projective space JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1971 SP - 62 EP - 70 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1971_5_a8/ LA - ru ID - IVM_1971_5_a8 ER -