1. Negative pore water pressure and collapse phenomena in unsaturated soils;Abe,1987
2. Experimental behavior of highly expansive double-structure clay;Alonso;Proc. of the 1st Int. Conf. on Unsaturated Soils, Paris, Balkema,1995
3. A constitutive model for partially saturated soils;Alonso;Géotechnique,1990
4. Volume change characteristics of unsaturated clay;Barden;Proc. ASCE,1969
5. The principle of effective stress, Teknisk ukeblad;Bishop,1959