4Th Biot Conference on Poromechanics, Date: JUN 08-10, 2009, Location: New York, NY, Patrocinadores: Columbia Univ, Sch Engn & Appl Sci, Univ Oklahoma, Poromechan Inst, ASCE Engn Mech Inst, ADAMA Engn, ERG Construct Trade & Ins Co Inc, Host: Columbia Univ