Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2017__25_5_a4, author = {Pol\'ak, Josef}, title = {Goniometrick\'e \v{r}e\v{s}en{\'\i} kubick\'e rovnice}, journal = {U\v{c}itel matematiky}, pages = {287--297}, publisher = {mathdoc}, volume = {25}, number = {5}, year = {2017}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2017__25_5_a4/} }
Polák, Josef. Goniometrické řešení kubické rovnice. Učitel matematiky, Tome 25 (2017) no. 5, pp. 287-297. http://geodesic.mathdoc.fr/item/UM_2017__25_5_a4/