Table of Contents
| Gas filtration through porous coal medium Effect of the gas constrained in micropores | |
| D. Lydzba, J.L. Aurtault | 447 - 473 |
| Influence of the Schulgasser inequality on effective moduli of two-phase isotropic composites | |
| S. Tokarzewski, J.J. Telega | 475 - 492 |
| Surface stress waves in a nonhomogeneous elastic half-space Part I. General results based on spectral analysis Existence and analyticity theorems | |
| T. Klecha | 493 - 512 |
| Symmetrization of a heat conduction model for a rigid medium | |
| W. Domański, T.F. Jabłoński, W. Kosiński | 541 - 550 |
| On the extension of Newton's second law to theories of gravitation in curved space-time | |
| M. Arminjon | 551 - 576 |
| Non-uniform stagnant motions of materially non-uniform simple fluids | |
| S. Zahorski | 577 - 582 |