@article{ELMA_1977__32_141186,
     author = {Helmut Hasse},
     title = {Ein {Analogon} zu den ganzzahligen pythagor\"aischen {Dreiecken.}},
     journal = {Elemente der Mathematik},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {32},
     year = {1977},
     zbl = {0353.10014},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1977__32_141186/}
}