@article{PMFA_1956_1_2_a2,
     author = {Van\'ysek, Vladim{\'\i}r},
     title = {Fysik\'aln{\'\i} struktura komet},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {156--169},
     year = {1956},
     volume = {1},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1956_1_2_a2/}
}