@article{PMFA_1959_4_3_a3,
     author = {Dirac, Paul},
     title = {Elektrony a vakuum},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {309--317},
     year = {1959},
     volume = {4},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1959_4_3_a3/}
}