TY - JOUR AU - T. P. Lukashenko TI - On properties of generalized expansion systems that are similar to orthogonal systems JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2000 SP - 33 EP - 48 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2000_10_a3/ LA - ru ID - IVM_2000_10_a3 ER -