@article{PMFA_1956_1_2_a3,
     author = {Kleczek, J.},
     title = {Slune\v{c}n{\'\i} protuberance},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {169--173},
     year = {1956},
     volume = {1},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1956_1_2_a3/}
}