§. 48. Ternäre orthogonale Substitutionen
Lehrbuch der Algebra Bd. 2, GDML_Books, (1896), p. 184 / Harvested from
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@article{PPN234735015+dmdlog64,
     title = {\S . 48. Tern\"are orthogonale Substitutionen},
     booktitle = {Lehrbuch der Algebra Bd. 2},
     series = {GDML\_Books},
     year = {1896},
     pages = {184},
     url = {http://dml.mathdoc.fr/item/PPN234735015+dmdlog64}
}

 (éd.). §. 48. Ternäre orthogonale Substitutionen, dans Lehrbuch der Algebra Bd. 2, GDML_Books,  (1896), p. 184. http://gdmltest.u-ga.fr/item/PPN234735015+dmdlog64/