TY - JOUR AU - Ya. I. Shtipel'man TI - Valuations of the quotient field of the ring of quantum mechanics JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1973 SP - 56 EP - 63 VL - 7 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1973_7_1_a5/ LA - ru ID - FAA_1973_7_1_a5 ER -