@article{PMFA_1975_20_6_a6,
     author = {Exner, Pavel},
     title = {Dva velc{\'\i} spektroskopist\'e},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {341--344},
     year = {1975},
     volume = {20},
     number = {6},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1975_20_6_a6/}
}