Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{PMFA_2004__49_1_a7, author = {Horsk\'y, Jan and \v{S}tefan{\'\i}k, Milan}, title = {Vzta\v{z}n\'e syst\'emy v~astronomii}, journal = {Pokroky matematiky, fyziky a astronomie}, pages = {60--64}, publisher = {mathdoc}, volume = {49}, number = {1}, year = {2004}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/PMFA_2004__49_1_a7/} }
Horský, Jan; Štefaník, Milan. Vztažné systémy v astronomii. Pokroky matematiky, fyziky a astronomie, Tome 49 (2004) no. 1, pp. 60-64. http://geodesic.mathdoc.fr/item/PMFA_2004__49_1_a7/