%0 Journal Article %A M. A. Naimark %T Commutative operator algebras in the space $\Pi_1$ %J Doklady Akademii Nauk %D 1964 %P 734-737 %V 156 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_156_4_a2/ %G ru %F DAN_1964_156_4_a2