Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1955__5_3_a4, author = {\v{C}en\v{e}k, Gabriel}, title = {Pozn\'amka ku kon\v{s}trukcii osvetlenia gu\v{l}ovej plochy v ortogon\'alne axonometrickom premietan{\'\i}}, journal = {Mathematica slovaca}, pages = {152--161}, publisher = {mathdoc}, volume = {05}, number = {3}, year = {1955}, mrnumber = {0074834}, language = {sl}, url = {http://geodesic.mathdoc.fr/item/MASLO_1955__5_3_a4/} }
Čeněk, Gabriel. Poznámka ku konštrukcii osvetlenia guľovej plochy v ortogonálne axonometrickom premietaní. Mathematica slovaca, Tome 05 (1955) no. 3, pp. 152-161. http://geodesic.mathdoc.fr/item/MASLO_1955__5_3_a4/