@article{PMFA_1997_42_5_a2,
     author = {Obdr\v{z}\'alek, Jan},
     title = {Potenci\'aln{\'\i} energie, potenci\'al},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {234--238},
     year = {1997},
     volume = {42},
     number = {5},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1997_42_5_a2/}
}