@article{AIHPA_1974__21_3_217_0,
     author = {Ferrero, Pierre and de Pazzis, Olivier and Robinson, Dereck W.},
     title = {Scattering theory with singular potentials. {II.} {The} n-body problem and hard cores},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {217--231},
     publisher = {Gauthier-Villars},
     volume = {21},
     number = {3},
     year = {1974},
     mrnumber = {377305},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1974__21_3_217_0/}
}