%0 Journal Article %A Ruggeri, Tommaso %A Strumia, Alberto %T Main field and convex covariant density for quasi-linear hyperbolic systems : relativistic fluid dynamics %J Annales de l'institut Henri Poincaré. Section A, Physique Théorique %D 1981 %P 65-84 %V 34 %N 1 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1981__34_1_65_0/ %G en %F AIHPA_1981__34_1_65_0