@article{PMFA_1959_4_5_a7,
     author = {Onderli\v{c}ka, B.},
     title = {N\v{e}kter\'e probl\'emy v\'yzkumu metagalaxie},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {584--594},
     year = {1959},
     volume = {4},
     number = {5},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1959_4_5_a7/}
}