%0 Journal Article %A K. Urbanik %T Remarks on joint distributions of observables %J Colloquium Mathematicum %D 1987 %P 309-314 %V 53 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-53-2-309-314/ %R 10.4064/cm-53-2-309-314 %G en %F 10_4064_cm_53_2_309_314