TY - JOUR AU - T. P. Lukashenko TI - Properties of expansion systems similar to orthogonal ones JO - Izvestiya. Mathematics PY - 1998 SP - 1035 EP - 1054 VL - 62 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1998_62_5_a7/ LA - en ID - IM2_1998_62_5_a7 ER -