@article{10_4064_cm_52_2_205_211, author = {Z. Olszak}, title = {On {Ricci-recurrent} manifolds}, journal = {Colloquium Mathematicum}, pages = {205--211}, publisher = {mathdoc}, volume = {52}, number = {2}, year = {1987}, doi = {10.4064/cm-52-2-205-211}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-52-2-205-211/} }