%0 Journal Article %A Guerra, Francesco %A Rosen, Lon %A Simon, Barry %T Boundary conditions for the $P(\phi )_2$ euclidean field theory %J Annales de l'institut Henri Poincaré. Section A, Physique Théorique %D 1976 %P 231-334 %V 25 %N 3 %I Gauthier-Villars %U http://archive.numdam.org/item/AIHPA_1976__25_3_231_0/ %G en %F AIHPA_1976__25_3_231_0