Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{RMF_2021__96_1_a1, author = {Calda, Emil}, title = {Ptolemaiova v\v{e}ta ve dvou \'uloh\'ach}, journal = {Rozhledy matematicko-fyzik\'aln{\'\i}}, pages = {4--7}, publisher = {mathdoc}, volume = {96}, number = {1}, year = {2021}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/RMF_2021__96_1_a1/} }
Calda, Emil. Ptolemaiova věta ve dvou úlohách. Rozhledy matematicko-fyzikální, Tome 96 (2021) no. 1, pp. 4-7. http://geodesic.mathdoc.fr/item/RMF_2021__96_1_a1/