TY  - JOUR
AU  - Detlef Laugwitz
TI  - Regular hexagons in normed spaces and a theorem of Walter Benz.
JO  - Aequationes mathematicae
PY  - 1993
SP  - 163
EP  - 166
VL  - 45
IS  - 2-3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137518/
ID  - AM2_1993__45_2-3_137518
ER  -