@article{10_1017_S0017089500005267, author = {Niknam, Assadollah}, title = {Closable derivations of simple {C*-algebras}}, journal = {Glasgow mathematical journal}, pages = {181--183}, year = {1983}, volume = {24}, number = {2}, doi = {10.1017/S0017089500005267}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005267/} }