%0 Journal Article %A Edwards, C. M. %T Sets of simple observables in the operational approach to quantum theory %J Annales de l'institut Henri Poincaré. Section A, Physique Théorique %D 1971 %P 1-14 %V 15 %N 1 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1971__15_1_1_0/ %G en %F AIHPA_1971__15_1_1_0