TY - JOUR AU - Yu. L. Shmul'yan TI - The theory of linear relations and spaces with an indefinite metric JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1976 SP - 67 EP - 72 VL - 10 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1976_10_1_a9/ LA - ru ID - FAA_1976_10_1_a9 ER -