@article{SEDP_1980-1981____A2_0,
     author = {Helffer, B. and Robert, D.},
     title = {Comportement asymptotique pr\'ecis\'e du spectre d{\textquoteright}op\'erateurs globalement elliptiques dans $R^n$},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:2},
     pages = {1--22},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1980-1981},
     zbl = {0503.35070},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1980-1981____A2_0/}
}