Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
@article{ZR_1959_Knj_7_1_a3, author = {Vaclav Vodi\v{c}ka}, title = {\"Uber eine {Formel} der {Elementarmathematik}}, journal = {Zbornik radova}, pages = {93 - 98}, publisher = {mathdoc}, volume = {Knj. 7}, number = {1}, year = {1959}, url = {http://geodesic.mathdoc.fr/item/ZR_1959_Knj_7_1_a3/} }
Vaclav Vodička. Über eine Formel der Elementarmathematik. Zbornik radova, Knj. 7 (1959) no. 1. http://geodesic.mathdoc.fr/item/ZR_1959_Knj_7_1_a3/