TY - JOUR AU - V. Oxman AU - M. Stupel AU - A. Sigler TI - Geometric Constructions for Geometric Optics Using a Straightedge Only JO - Journal for geometry and graphics PY - 2014 SP - 73 EP - 79 VL - 18 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JGG_2014_18_1_JGG_2014_18_1_a5/ ID - JGG_2014_18_1_JGG_2014_18_1_a5 ER -