@article{AIHPA_1977__26_1_1_0,
     author = {Ruijsenaars, S. N. M. and Bongaarts, P. J. M.},
     title = {Scattering theory for one-dimensional step potentials},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {1--17},
     publisher = {Gauthier-Villars},
     volume = {26},
     number = {1},
     year = {1977},
     mrnumber = {443712},
     zbl = {0353.47004},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1977__26_1_1_0/}
}