%0 Journal Article %A Strumia, Alberto %T Some remarks on conservative symmetric-hyperbolic systems governing relativistic theories %J Annales de l'I.H.P. Physique théorique %D 1983 %P 113-120 %V 38 %N 2 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1983__38_2_113_0/ %G en %F AIHPA_1983__38_2_113_0