Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2009__17_3_a1, author = {Sm\'ykalov\'a, Radka}, title = {St\v{r}edov\v{e}k\'y zrod trigonometrick\'ych veli\v{c}in}, journal = {U\v{c}itel matematiky}, pages = {143--157}, publisher = {mathdoc}, volume = {17}, number = {3}, year = {2009}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2009__17_3_a1/} }
Smýkalová, Radka. Středověký zrod trigonometrických veličin. Učitel matematiky, Tome 17 (2009) no. 3, pp. 143-157. http://geodesic.mathdoc.fr/item/UM_2009__17_3_a1/