@article{AIHPA_1980__33_3_251_0,
     author = {Morchio, G. and Strocchi, F.},
     title = {Infrared singularities, vacuum structure and pure phases in local quantum field theory},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {251--282},
     publisher = {Gauthier-Villars},
     volume = {33},
     number = {3},
     year = {1980},
     mrnumber = {601840},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1980__33_3_251_0/}
}