- Z. Olszak, K. S³uka,
On the existence of affine connections with recurrent projective curvature,
Demonstr. Math. 33 (2000), 171-179.
- K. S³uka,
Properties of the Weyl conformal curvature of Kähler-Norden manifolds,
In: Steps in Differential Geometry, 317-328, (Proc. Colloq. Diff. Geom. July 25-30, 2000, Debrecen,
Hungary), Debrecen, 2001.
- K. S³uka,
On Kähler manifolds with Norden metrics,
An. Stiint. Univ. "Al.I.Cuza" Iaºi, Ser. Noua, Mat., 47 (2001), 105-122.
- K. S³uka,
On the curvature of Kähler-Norden manifolds,
J. Geom. Phys. 54 (2005), 131-145.
- K. Olszak,
On the Bochner conformal curvature of Kähler-Norden manifolds,
Cent. Eur. J. Math. 3 (2005), No. 2, 309-317.
- K. Olszak, Z. Olszak,
Generalized Einstein conditions on holomorphic Riemannian manifolds,
Acta Math. Hungar., 113 (4) (2006), 345-358.
- K. Arslan, C. Murathan, K. Olszak and Z. Olszak,
On almost Hermitian structures induced on leaves of the canonical foliation on certain almost contact metric manifolds,
publ. de la RSME, Vol. 11 (2007), 216-222, (Proc. XV Int. Workshop Geom. Phys., Puerto de la Cruz, Tenerife, Spain, 2006).
- K. Olszak, Z. Olszak,
On 4-dimensional, conformally flat, almost ε-Kählerian manifolds, J. Geom. Phys. 54 (2012), 1108-1113.
- K. Olszak, Z. Olszak,
On pseudo-Riemannian manifolds with recurrent concircular curvature tensor,
Acta Math. Hungar., 137 (2012), No. 1-2. 64-71.
-
K. Olszak, Z. Olszak,
The equi-affine and Frenet curvatures of curves in pseudo-Riemannian 2-manifolds,
Colloq. Math. (2017), No. 1, 103-112.