@article{AIHPA_1978__29_4_395_0,
     author = {Davies, E. B.},
     title = {Two-channel hamiltonians and the optical model of nuclear scattering},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {395--413},
     publisher = {Gauthier-Villars},
     volume = {29},
     number = {4},
     year = {1978},
     mrnumber = {525390},
     zbl = {0427.47004},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1978__29_4_395_0/}
}