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@article{AM2_1997__54_3_137699, author = {Wolfgang Schuster}, title = {Quadratische {Identit\"aten} bei {Polygonen.}}, journal = {Aequationes mathematicae}, pages = {117--143}, publisher = {mathdoc}, volume = {54}, number = {3}, year = {1997}, language = {de}, url = {http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137699/} }
Wolfgang Schuster. Quadratische Identitäten bei Polygonen.. Aequationes mathematicae, Tome 54 (1997) no. 3, pp. 117-143. http://geodesic.mathdoc.fr/item/AM2_1997__54_3_137699/