TY - JOUR AU - Friedrich, Thomas TI - Nearly Kähler and nearly parallel $G\sb 2$-structures on spheres JO - Archivum mathematicum PY - 2006 SP - 241 EP - 243 VL - 42 IS - 5 UR - http://geodesic.mathdoc.fr/item/ARM_2006_42_5_a10/ LA - en ID - ARM_2006_42_5_a10 ER -