TY  - JOUR
AU  - M. A. Naǐmark
TI  - Conditions for the unitary equivalence of commutative symmetric algebras in the Pontrjagin space~$\Pi_k$
JO  - Trudy Moskovskogo matematičeskogo obŝestva
PY  - 1966
SP  - 383
EP  - 399
VL  - 15
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MMO_1966_15_a10/
LA  - ru
ID  - MMO_1966_15_a10
ER  -