@article{1103044611,
author = {Wild, Roy E.},
title = {On the number of primitive Pythagorean triangles with area less than $n$.},
journal = {Pacific J. Math.},
volume = {5},
number = {4},
year = {1955},
pages = { 85-91},
language = {en},
url = {http://dml.mathdoc.fr/item/1103044611}
}
Wild, Roy E. On the number of primitive Pythagorean triangles with area less than $n$.. Pacific J. Math., Tome 5 (1955) no. 4, pp. 85-91. http://gdmltest.u-ga.fr/item/1103044611/