Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@misc{PMFA_1960__5_5_a7, title = {Profesor {Karel} {Petr} [fotografie]}, journal = {Pokroky matematiky, fyziky a astronomie}, publisher = {mathdoc}, volume = {05}, number = {5}, year = {1960}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/PMFA_1960__5_5_a7/} }
Profesor Karel Petr [fotografie]. Pokroky matematiky, fyziky a astronomie, Tome 05 (1960) no. 5. http://geodesic.mathdoc.fr/item/PMFA_1960__5_5_a7/