%0 Journal Article %A K. Urbanik %T Joint probability distributions of observables in quantum mechanics %J Studia Mathematica %D 1961 %P 117-133 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-21-1-117-133/ %R 10.4064/sm-21-1-117-133 %G en %F 10_4064_sm_21_1_117_133