@article{10_4153_CMB_2010_042_x,
     author = {Fang, Xiaochun and Wang, Lin},
     title = {Equivalent {Definitions} of {Infinite} {Positive} {Elements} in {Simple} {C*-algebras}},
     journal = {Canadian mathematical bulletin},
     pages = {256--262},
     year = {2010},
     volume = {53},
     number = {2},
     doi = {10.4153/CMB-2010-042-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-042-x/}
}