%0 Journal Article %A Marek Słociński %T Normal extensions of commutative subnormal operators %J Studia Mathematica %D 1975 %P 259-266 %V 54 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4064/sm-54-3-259-266/ %R 10.4064/sm-54-3-259-266 %G en %F 10_4064_sm_54_3_259_266