TY  - JOUR
AU  - Izidor Hafner
TI  - Gerling's dissection
JO  - Visual Mathematics
PY  - 2008
VL  - 10
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VM_2008_10_1_a2/
ID  - VM_2008_10_1_a2
ER  -