TY  - JOUR
AU  - Izidor Hafner
TI  - Three dimensional illustrations for some propositions from Euclid's Elements
JO  - Visual Mathematics
PY  - 2007
VL  - 9
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VM_2007_9_3_a3/
ID  - VM_2007_9_3_a3
ER  -