TY - JOUR AU - John M. Sullivan TI - "The Optiverse" and Other Sphere Eversions JO - Visual Mathematics PY - 1999 VL - 1 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VM_1999_1_3_a4/ ID - VM_1999_1_3_a4 ER -