@article{AIHPA_1994__61_2_153_0,
     author = {Ruskai, Mary Beth},
     title = {Improved estimate on the number of bound states of negatively charged bosonic atoms},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {153--162},
     publisher = {Gauthier-Villars},
     volume = {61},
     number = {2},
     year = {1994},
     mrnumber = {1311062},
     zbl = {0817.47079},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1994__61_2_153_0/}
}