@article{SEDP_2000-2001____A23_0,
     author = {Evans, Lawrence C.},
     title = {Effective {Hamiltonians} and {Quantum} {States}},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:23},
     pages = {1--13},
     publisher = {Centre de math\'ematiques Laurent Schwartz, \'Ecole polytechnique},
     year = {2000-2001},
     zbl = {1055.81524},
     mrnumber = {1860693},
     language = {en},
     url = {http://www.numdam.org/item/SEDP_2000-2001____A23_0/}
}