Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MO_2007_41_1_a4, author = {E. D. Kulanin}, title = {Rectangular {Triangle}}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {18--23}, publisher = {mathdoc}, volume = {41}, number = {1}, year = {2007}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2007_41_1_a4/} }
E. D. Kulanin. Rectangular Triangle. Matematičeskoe obrazovanie, Tome 41 (2007) no. 1, pp. 18-23. http://geodesic.mathdoc.fr/item/MO_2007_41_1_a4/