@article{1104178764, author = {Spohn, Herbert}, title = {Ground state(s) of the spin-boson Hamiltonian}, journal = {Comm. Math. Phys.}, volume = {120}, number = {3}, year = {1989}, pages = { 277-304}, language = {en}, url = {http://dml.mathdoc.fr/item/1104178764} }
Spohn, Herbert. Ground state(s) of the spin-boson Hamiltonian. Comm. Math. Phys., Tome 120 (1989) no. 3, pp. 277-304. http://gdmltest.u-ga.fr/item/1104178764/