@article{1103841036, author = {Ginibre, J.}, title = {Reduced density matrices of the anisotropic Heisenberg model}, journal = {Comm. Math. Phys.}, volume = {7}, number = {1}, year = {1968}, pages = { 140-154}, language = {en}, url = {http://dml.mathdoc.fr/item/1103841036} }
Ginibre, J. Reduced density matrices of the anisotropic Heisenberg model. Comm. Math. Phys., Tome 7 (1968) no. 1, pp. 140-154. http://gdmltest.u-ga.fr/item/1103841036/