@article{PMFA_1970_15_3-4_a3,
     author = {Gr\"un, Marcel and Koubsk\'y, Pavel},
     title = {Radarov\'a astronomie},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {138--152},
     year = {1970},
     volume = {15},
     number = {3-4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1970_15_3-4_a3/}
}