@article{JIS_2007__10_9_a7,
     author = {Kurz, Sascha},
     title = {Enumeration of integral tetrahedra},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {10},
     number = {9},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2007__10_9_a7/}
}