@article{10_4153_CJM_1988_037_8,
     author = {Packer, Judith A.},
     title = {Strong {Morita} {Equivalence} for {Heisenberg} {C*-Algebras} and the {Positive} {Cones} of {Their} {K} {0-Groups}},
     journal = {Canadian journal of mathematics},
     pages = {833--864},
     year = {1988},
     volume = {40},
     number = {4},
     doi = {10.4153/CJM-1988-037-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1988-037-8/}
}