ON GENERALIZED CURVATURE TENSORS AND SYMMETRIC (0,2)-TENSORS WITH A SYMMETRY CONDITION IMPOSED ON THE SECOND DERIVATIVEGRYCAK W.1979; TENSOR; JPN; DA. 1979; VOL. 33; NO 2; PP. 150-152; BIBL. 7 REF.Article

ON AFFINE COLLINEATIONS IN CONFORMALLY RECURRENT MANIFOLDSGRYCAK W.1981; TENSOR; ISSN 0040-3504; JPN; DA. 1981; VOL. 35; NO 1; PP. 45-50; BIBL. 8 REF.Article

NULL GEODESIC COLLINEATIONS IN CONFORMALLY RECURRENT MANIFOLDSGRYCAK W.1980; TENSOR; ISSN 0040-3504; JPN; DA. 1980; VOL. 34; NO 3; PP. 253-259; BIBL. 6 REF.Article

ON THE EXISTENCE OF CERTAIN TYPES OF RIEMANNIAN METRICSGRYCAK W; HOTLOS M.1982; COLLOQUIUM MATHEMATICUM; ISSN 0010-1354; POL; DA. 1982; VOL. 47; NO 1; PP. 31-37; BIBL. 5 REF.Article