%0 Journal Article %A I. Lukach %T A complete set of quantum-mechanical observables on a two-dimensional sphere %J Teoretičeskaâ i matematičeskaâ fizika %D 1973 %P 366-380 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1973_14_3_a7/ %G ru %F TMF_1973_14_3_a7