Index for 4aPA

• 4aPA1. Modification of Biot's theory of porous materials.
• 4aPA2. Coupled phase theory for the complex density of rigid-porous materials.
• 4aPA3. Dynamics of single bubbles in laboratory sediments.
• 4aPA4. On the dynamic drag coefficient for wave propagation through fluid-saturated highly porous open-cell foams.
• 4aPA5. The behavior of transient elastodynamic waves at a linear slip interface.
• 4aPA6. Estimating pile bearing capacity via acoustic and seismic measurements.