TY  - JOUR
AU  - J. Bennish
AU  - Y.D. Gau
TI  - When is a Polygon Circumscribing a Regular Polygon Again Regular?
JO  - Elemente der Mathematik
PY  - 1993
SP  - 17
EP  - 26
VL  - 48
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELMA_1993__48_4_141540/
ID  - ELMA_1993__48_4_141540
ER  -