%0 Journal Article %A Maslov, V. P. %T Ill posed Cauchy problems for ideal gas equations and their regularization %J Journées équations aux dérivées partielles %D 1987 %P 1-17 %I Ecole polytechnique %U http://www.numdam.org/item/JEDP_1987____A19_0/ %G en %F JEDP_1987____A19_0