@article{SEDP_1970-1971____A14_0,
     author = {Zizi, K.},
     title = {Sur les travaux de {Birman-Entina} concernant les perturbations des op\'erateurs auto-adjoints par des op\'erateurs de classe trace},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:14},
     pages = {1--7},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1970-1971},
     mrnumber = {410434},
     zbl = {0249.47006},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1970-1971____A14_0/}
}