@incollection{AST_2003__287__19_0,
     author = {Dinaburg, Efim I. and Posvyanskii, Vladimir S. and Sinai, Yakov G.},
     title = {On some approximations of the quasi-geostrophic equation},
     booktitle = {Geometric methods in dynamics (II) : Volume in honor of Jacob Palis},
     editor = {de Melo, Wellington and Viana, Marcelo and Yoccoz, Jean-Christophe},
     series = {Ast\'erisque},
     pages = {19--32},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {287},
     year = {2003},
     mrnumber = {2039998},
     zbl = {1054.35050},
     language = {en},
     url = {http://www.numdam.org/item/AST_2003__287__19_0/}
}