@article{GDZPPN002428148, title = {On the Geometry of Positive Maps in Matrix Algebras.}, journal = {Mathematische Zeitschrift}, volume = {183}, year = {1983}, pages = {101-108}, zbl = {0511.46050}, url = {http://dml.mathdoc.fr/item/GDZPPN002428148} }
Takasaki, Toshiyuki; Tomiyama, Jun. On the Geometry of Positive Maps in Matrix Algebras.. Mathematische Zeitschrift, Tome 183 (1983) pp. 101-108. http://gdmltest.u-ga.fr/item/GDZPPN002428148/