@article{GDZPPN002083663,
title = {An Analogue of the Pythagorean Theorem with Regualr n-Gons instead of Squares.},
journal = {Elemente der Mathematik},
volume = {51},
year = {1996},
pages = {156-160},
zbl = {0877.51024},
url = {http://dml.mathdoc.fr/item/GDZPPN002083663}
}
Veljan, Darko. An Analogue of the Pythagorean Theorem with Regualr n-Gons instead of Squares.. Elemente der Mathematik, Tome 51 (1996) pp. 156-160. http://gdmltest.u-ga.fr/item/GDZPPN002083663/