@article{SEDP_1971-1972____A19_0,
     author = {Grubb, G.},
     title = {Caract\'erisation de quelques propri\'et\'es des probl\`emes aux limites pour les syst\`emes elliptiques : probl\`emes aux limites variationnel},
     journal = {S\'eminaire Goulaouic-Schwartz},
     note = {talk:19 bis},
     pages = {1--13},
     year = {1971-1972},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     mrnumber = {397795},
     language = {fr},
     url = {https://www.numdam.org/item/SEDP_1971-1972____A19_0/}
}