@article{SEDP_2001-2002____A19_0,
     author = {Volberg, Alexander},
     title = {Bellman approach to some  problems in harmonic analysis},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:19},
     pages = {1--14},
     publisher = {Centre de math\'ematiques Laurent Schwartz, \'Ecole polytechnique},
     year = {2001-2002},
     language = {en},
     url = {http://www.numdam.org/item/SEDP_2001-2002____A19_0/}
}