%0 Journal Article %A Packer, Judith A. %T Strong Morita Equivalence for Heisenberg C*-Algebras and the Positive Cones of Their K 0-Groups %J Canadian journal of mathematics %D 1988 %P 833-864 %V 40 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1988-037-8/ %R 10.4153/CJM-1988-037-8 %F 10_4153_CJM_1988_037_8