@article{PMFA_1957__2_6_a3,
     author = {Krat, V. A.},
     title = {P\r{u}vod slune\v{c}n{\'\i} soustavy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {677--687},
     publisher = {mathdoc},
     volume = {02},
     number = {6},
     year = {1957},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1957__2_6_a3/}
}