@article{AIHPA_1991__54_2_179_0,
     author = {Hughes, Rhonda J. and Kon, Mark A.},
     title = {Norm group convergence for singular {Schr\"odinger} operators},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {179--198},
     publisher = {Gauthier-Villars},
     volume = {54},
     number = {2},
     year = {1991},
     mrnumber = {1110651},
     zbl = {0780.35087},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1991__54_2_179_0/}
}