%0 Journal Article %A Fröhlich, Jürg %T Verification of axioms for euclidean and relativistic fields and Haag’s theorem in a class of $P(\varphi )_2$-models %J Annales de l'institut Henri Poincaré. Section A, Physique Théorique %D 1974 %P 271-317 %V 21 %N 4 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPA_1974__21_4_271_0/ %G en %F AIHPA_1974__21_4_271_0