%0 Journal Article %A K. Hepp %T On phase transitions in open systems far from thermal equilibrium %J Informatics and Automation %D 1975 %P 323-332 %V 136 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1975_136_a22/ %G en %F TRSPY_1975_136_a22