@article{SEDP_1990-1991____A13_0,
     author = {Chemin, J. Y.},
     title = {Persistance des structures g\'eom\'etriques li\'ees aux poches de tourbillon},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:13},
     pages = {1--11},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1990-1991},
     mrnumber = {1131586},
     zbl = {0778.76016},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1990-1991____A13_0/}
}