Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1993__48_4_141540, author = {J. Bennish and Y.D. Gau}, title = {When is a {Polygon} {Circumscribing} a {Regular} {Polygon} {Again} {Regular?}}, journal = {Elemente der Mathematik}, pages = {17--26}, publisher = {mathdoc}, volume = {48}, number = {4}, year = {1993}, zbl = {0778.51006}, url = {http://geodesic.mathdoc.fr/item/ELMA_1993__48_4_141540/} }
J. Bennish; Y.D. Gau. When is a Polygon Circumscribing a Regular Polygon Again Regular?. Elemente der Mathematik, Tome 48 (1993) no. 4, pp. 17-26. http://geodesic.mathdoc.fr/item/ELMA_1993__48_4_141540/