@article{10_4153_CMB_1981_013_x,
     author = {Tsui, Sze-Kai},
     title = {Compact {Derivations} on {Von} {Neumann} {Algebras}},
     journal = {Canadian mathematical bulletin},
     pages = {87--90},
     year = {1981},
     volume = {24},
     number = {1},
     doi = {10.4153/CMB-1981-013-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1981-013-x/}
}