@article{1103857333, author = {Simon, Barry}, title = {Hamiltonians defined as quadratic forms}, journal = {Comm. Math. Phys.}, volume = {20}, number = {1}, year = {1971}, pages = { 192-210}, language = {en}, url = {http://dml.mathdoc.fr/item/1103857333} }
Simon, Barry. Hamiltonians defined as quadratic forms. Comm. Math. Phys., Tome 20 (1971) no. 1, pp. 192-210. http://gdmltest.u-ga.fr/item/1103857333/