Eigenvalue asymptotics related to impurities in crystals
Méthodes semi-classiques Volume 2 - Colloque international (Nantes, juin 1991), Astérisque no. 210  (1992), p. 183-196
@incollection{AST_1992__210__183_0,
     author = {Hempel, Rainer},
     title = {Eigenvalue asymptotics related to impurities in crystals},
     booktitle = {M\'ethodes semi-classiques Volume 2 - Colloque international (Nantes, juin 1991)},
     author = {Collectif},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {210},
     year = {1992},
     pages = {183-196},
     language = {en},
     url = {http://www.numdam.org/item/AST_1992__210__183_0}
}
Hempel, Rainer. Eigenvalue asymptotics related to impurities in crystals, in Méthodes semi-classiques Volume 2 - Colloque international (Nantes, juin 1991), Astérisque, no. 210 (1992), pp. 183-196. http://www.numdam.org/item/AST_1992__210__183_0/

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