@misc{Shah_Ahmed_S._Study, author={Shah, Ahmed S.}, howpublished={online}, publisher={Zielona Góra: Uniwersytet Zielonogórski}, language={eng}, abstract={Employing Biot`s theory of wave propagation in liquid saturated porous media, waves propagating in a hollow poroelastic circular cylinder of infinite extent are investigated. General frequency equations for propagation of waves are obtained each for a pervious and an impervious surface. Degenerate cases of the general frequency equations of pervious and impervious surfaces, when the longitudinal wavenumber "k" and angular wavenumber "n" are zero, are considered.}, type={artykuł}, title={Study of three dimensional propagation of waves in hollow poroelastic circular cylinders}, keywords={Biot`s theory, poroelastic cylindrical shell, pervious surface, impervious surface, wavenumber, frequency}, }