TY - JOUR AU - A. Yampolsky TI - Invariant totally geodesic unit vector fields on three-dimensional Lie groups JO - Žurnal matematičeskoj fiziki, analiza, geometrii PY - 2007 SP - 253 EP - 276 VL - 3 IS - 2 UR - http://geodesic.mathdoc.fr/item/JMAG_2007_3_2_a7/ LA - en ID - JMAG_2007_3_2_a7 ER -