Voir la notice de l'article dans Czech Digital Mathematics Library
@article{RMF_2009__84_2_a1, author = {\v{S}vr\v{c}ek, Jaroslav}, title = {O jedn\'e \'uloze z ukrajinsk\'e {MO}}, journal = {Rozhledy matematicko-fyzik\'aln{\'\i}}, pages = {5--11}, publisher = {mathdoc}, volume = {84}, number = {2}, year = {2009}, language = {cz}, url = {https://geodesic-test.mathdoc.fr/item/RMF_2009__84_2_a1/} }
Švrček, Jaroslav. O jedné úloze z ukrajinské MO. Rozhledy matematicko-fyzikální, Tome 84 (2009) no. 2, pp. 5-11. https://geodesic-test.mathdoc.fr/item/RMF_2009__84_2_a1/