@article{PMFA_1989__34_6_a0,
     author = {Simon, Barry},
     title = {O\v{c} vlastn\v{e} jde v teorii {Schrodingerov\'ych} oper\'ator\r{u}?},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {305--312},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1989},
     mrnumber = {1042257},
     zbl = {0738.35076},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/item/PMFA_1989__34_6_a0/}
}