@article{PMFA_1959_4_5_a5,
     author = {Skotnick\'y, Josef},
     title = {Dr\'ahy kozmickej rakety},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {571--582},
     year = {1959},
     volume = {4},
     number = {5},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1959_4_5_a5/}
}