TY - JOUR AU - O. P. Gladunova AU - V. V. Slavskii TI - Harmonicity of the Weyl tensor of left-invariant Riemannian metrics on four-dimensional unimodular Lie groups JO - Matematičeskie trudy PY - 2011 SP - 50 EP - 69 VL - 14 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MT_2011_14_1_a1/ LA - ru ID - MT_2011_14_1_a1 ER -