. AUTHOR : Sas P. 1.     Stress-Dependent Complementary Variations in P- and S-Wave Velocities for Rocks Containing   High-Compliance Porosity: an Effective-Medium Model and Comparison with Experiments . V.Zaitsev, A.Shulga (Institute of Applied Physics RAS, Nizhny Novgorod, Russia); P.Sas (Katholieke Universiteit Leuven, Mechanical Engineering Department, Heverlee, Belgium) .