Ważniejsze publikacje Z. Żekanowski - On Certain Generalization of the Concept of a Self Dual Tensor, and a Killing Tensor in a Vn. Demonstratio Math. 1, 77-137 (1969); Z. Żekanowski - On Certain Generalization of the Concept of a harmonic and a Killing Tensor in a Vn. Demonstratio Math. 2, 201-221 (1970); Z. Żekanowski - On some properties of Riemannian space Vn with constant scalar curvature. Colloquium Math. 26, 145-148 (1974); Z. Żekanowski - On generalized symmetric curvature tensor fields in the Riemannian manifolds. Demonstratio Math. 11, 157-171 (1978); Z. Żekanowski - On some generalized 2-inner products in the Riemannian manifolds. Demonstratio Math. 12, 833-836 (1979); W. Sasin, Z. Żekanowski - Some sheaves over a differential space. Demonstratio Math. 16, 239-267 (1983); S. Gahler, Z. Żekanowski - Tensors, 2-inner products and projections. Demonstratio Math. 19, 747-766 (1986); W. Sasin, Z. Żekanowski - On locally finitely generated differential spaces. Demonstratio Math 20, 477–487 (1987); S. Gahler, Z. Żekanowski - Remarks on tensors and families of projections. Math. Nachr.143, 277-290 (1989); P. Multarzyński, Z. Żekanowski - On general Hamiltonian dynamical systems in differential spaces. Demonstratio Math. 24, 535-555 (1991); P. Multarzyński, W. Sasin, Z.