Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_1998__6_4_a6, author = {Ku\v{r}ina, Franti\v{s}ek}, title = {Heron\r{u}v d\r{u}kaz {Heronova} vzorce}, journal = {U\v{c}itel matematiky}, pages = {234--237}, publisher = {mathdoc}, volume = {06}, number = {4}, year = {1998}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_1998__6_4_a6/} }
Kuřina, František. Heronův důkaz Heronova vzorce. Učitel matematiky, Tome 06 (1998) no. 4, pp. 234-237. http://geodesic.mathdoc.fr/item/UM_1998__6_4_a6/