CONTENTS, vol. 18, '92

Research papers

Z. Onyszkiewicz: Statistical Operators for Two Arbitrary Parts of Closed Universe
U. Kasper: Particle and Entropy Creation in Cosmology
A. Woszczyna: On a Deviation from Jeans' Instability Criterion
M. Heller, P. Multarzynski, W. Sasin and Z. Zekanowski: On Some Generalizations of the Manifold Concept
J. Gruszczak, M. Heller and W. Sasin: Quasiregular Singularity of a Cosmic String
M. Heller, W. Sasin, A. Trafny and Z. Zekanowski: Differential Spaces and New Aspects of Schmidt's b--Boundary of Space--Time
W. Rudnicki: Can a Generic Strong Curvature Singularity be Visible from Infinity?
M. Szydlowski: Dynamical Effects of the ``Extra" Dimensions in Multidimensional Homogeneous Cosmology

Primordial Nucleosynthesis and Evolution of the Early Universe, edited by K. Sato, J. Audouze

Observational Tests of Cosmological Inflation, edited by T. Shanks, A.J. Banday, R.S. Ellis, C.S. Frenk, A.W. Wolfendale