@article{PMFA_1981__26_2_a9,
     author = {\v{S}tefl, Vladim{\'\i}r},
     title = {K fyzik\'aln{\'\i}mu pojet{\'\i} v\'yuky astronomie na gymn\'aziu},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {111--114},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {1981},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1981__26_2_a9/}
}