TY - JOUR AU - Petrovic, V. TI - Product-concircular curvature tensor. JO - Publications de l'Institut Mathématique [Elektronische Ressource] PY - 1979 VL - 39 SP - 131 EP - 137 LA - eng KW - local Riemannian geometry; concircular geometry; Riemannian product UR - http://eudml.org/doc/258462 ER -