TY - JOUR AU - Izidor Hafner AU - Tomislav Žitko TI - Paper Model Solution of Conway-Radin-Sadun Problem JO - Visual Mathematics PY - 2007 VL - 9 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VM_2007_9_2_a4/ ID - VM_2007_9_2_a4 ER -