Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{UM_2000__8_3_a0, author = {Hejn\'y, Milan and Jirotkov\'a, Darina}, title = {\v{C}tvere\v{c}kovan\'y pap{\'\i}r, troj\'uheln{\'\i}ky a {Pickova} formule}, journal = {U\v{c}itel matematiky}, pages = {129--135}, publisher = {mathdoc}, volume = {08}, number = {3}, year = {2000}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/UM_2000__8_3_a0/} }
Hejný, Milan; Jirotková, Darina. Čtverečkovaný papír, trojúhelníky a Pickova formule. Učitel matematiky, Tome 08 (2000) no. 3, pp. 129-135. http://geodesic.mathdoc.fr/item/UM_2000__8_3_a0/