@article{1103858042, author = {Roos, H.}, title = {On quantum systems in thermal contact}, journal = {Comm. Math. Phys.}, volume = {24}, number = {2}, year = {1972}, pages = { 149-168}, language = {en}, url = {http://dml.mathdoc.fr/item/1103858042} }
Roos, H. On quantum systems in thermal contact. Comm. Math. Phys., Tome 24 (1972) no. 2, pp. 149-168. http://gdmltest.u-ga.fr/item/1103858042/