@article{SEDP_1971-1972____A8_0,
     author = {Zerner, M.},
     title = {Caract\'eristiques d'approximation des compacts dans les espaces fonctionnels et probl\`emes aux limites elliptiques},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:8},
     pages = {1--11},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1971-1972},
     mrnumber = {410073},
     zbl = {0247.35042},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1971-1972____A8_0/}
}