@article{PMFA_1956__1_3_a8,
     author = {Sekanina, Zden\v{e}k},
     title = {K probl\'emu vztahu {\guillemotright}perioda-sv{\'\i}tivost{\guillemotleft} u dlouhoperiodick\'ych cefeid},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {282--288},
     publisher = {mathdoc},
     volume = {01},
     number = {3},
     year = {1956},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1956__1_3_a8/}
}