@article{SEDP_1988-1989____A12_0, author = {Helffer, B. and Sj\"ostrand, J.}, title = {Op\'erateurs de {Schr\"odinger} avec champs magn\'etiques faibles et constants}, journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"}, note = {talk:12}, publisher = {Ecole Polytechnique, Centre de Math\'ematiques}, year = {1988-1989}, zbl = {0702.35185}, mrnumber = {1032288}, language = {fr}, url = {http://www.numdam.org/item/SEDP_1988-1989____A12_0/} }