Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2020__28_4_a3, author = {Ku\v{r}ina, Franti\v{s}ek}, title = {Jak to vlastn\v{e} je? {Troj\'uheln{\'\i}k}}, journal = {U\v{c}itel matematiky}, pages = {222--233}, publisher = {mathdoc}, volume = {28}, number = {4}, year = {2020}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2020__28_4_a3/} }
Kuřina, František. Jak to vlastně je? Trojúhelník. Učitel matematiky, Tome 28 (2020) no. 4, pp. 222-233. http://geodesic.mathdoc.fr/item/UM_2020__28_4_a3/