@article{ELMA_1996__51_3_141599,
     author = {Darko Veljan},
     title = {An {Analogue} of the {Pythagorean} {Theorem} with {Regualr} {n-Gons} instead of {Squares.}},
     journal = {Elemente der Mathematik},
     pages = {156--160},
     publisher = {mathdoc},
     volume = {51},
     number = {3},
     year = {1996},
     zbl = {0877.51024},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1996__51_3_141599/}
}