%0 Journal Article %A Kari Ylinen %T Dual C*-algebras, weakly semi-completely continuous elements, and the extreme rays of the positive cone %J Annales Fennici Mathematici %D 1975 %V 581-600 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.599/ %R 10.5186/aasfm.1975.599 %G en %F AFM_1975_581-600_a1