@article{AIHPA_1977__26_1_55_0,
     author = {Daumens, Michel},
     title = {D\'eveloppement multipolaire des fonctions de vertex \`a deux particules finales},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {55--86},
     publisher = {Gauthier-Villars},
     volume = {26},
     number = {1},
     year = {1977},
     mrnumber = {468787},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1977__26_1_55_0/}
}