@article{PMFA_1967_12_4_a3,
     author = {Vlach\'y, Jan},
     title = {Americk\'e feder\'aln{\'\i} v\'ydaje na fyziku, v\v{e}dy o {Zemi} a astronomii},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {235--244},
     year = {1967},
     volume = {12},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1967_12_4_a3/}
}