@article{AIHPA_1974__21_4_271_0,
     author = {Fr\"ohlich, J\"urg},
     title = {Verification of axioms for euclidean and relativistic fields and {Haag{\textquoteright}s} theorem in a class of $P(\varphi )_2$-models},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {271--317},
     publisher = {Gauthier-Villars},
     volume = {21},
     number = {4},
     year = {1974},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1974__21_4_271_0/}
}