%0 Journal Article
%A Koch, Hans
%T Irreducible kernels and bound states in $\lambda \mathcal {P}(\varphi )_2$ models
%J Annales de l'institut Henri Poincaré. Section A, Physique Théorique
%D 1979
%P 173-234
%V 31
%N 3
%I Gauthier-Villars
%U http://www.numdam.org/item/AIHPA_1979__31_3_173_0/
%G en
%F AIHPA_1979__31_3_173_0