@article{RSMUP_1978__60__77_0,
     author = {Bressan, A.},
     title = {On wave functions in quantum mechanics. {I}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {77--98},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {60},
     year = {1978},
     mrnumber = {555957},
     zbl = {0432.35074},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1978__60__77_0/}
}