Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@misc{PMFA_1971__16_6_a0, title = {Joannes {Keppler} [obr\'azek]}, journal = {Pokroky matematiky, fyziky a astronomie}, publisher = {mathdoc}, volume = {16}, number = {6}, year = {1971}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/PMFA_1971__16_6_a0/} }
Joannes Keppler [obrázek]. Pokroky matematiky, fyziky a astronomie, Tome 16 (1971) no. 6. http://geodesic.mathdoc.fr/item/PMFA_1971__16_6_a0/