Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{PMFA_1980__25_3_a3, author = {Buzek, Otakar and \v{C}erm\'ak, Jan}, title = {\v{C}as a kmito\v{c}et}, journal = {Pokroky matematiky, fyziky a astronomie}, pages = {144--155}, publisher = {mathdoc}, volume = {25}, number = {3}, year = {1980}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/PMFA_1980__25_3_a3/} }
Buzek, Otakar; Čermák, Jan. Čas a kmitočet. Pokroky matematiky, fyziky a astronomie, Tome 25 (1980) no. 3, pp. 144-155. http://geodesic.mathdoc.fr/item/PMFA_1980__25_3_a3/