@article{SEDP_1983-1984____A15_0,
     author = {B\'erard, P. and Gallot, S.},
     title = {In\'egalit\'es isop\'erim\'etriques pour l'\'equation de la chaleur et application \`a l'estimation de quelques invariants},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:15},
     pages = {1--34},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1983-1984},
     zbl = {0542.53025},
     language = {fr},
     url = {http://archive.numdam.org/item/SEDP_1983-1984____A15_0/}
}