@article{PMFA_1975__20_4_a7,
     author = {Hudec, Ren\'e},
     title = {15 let vyu\v{c}ov\'an{\'\i} astronomii v {NDR}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {222--225},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {1975},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1975__20_4_a7/}
}