1. Collapse phenomena and negative pore water pressure of unsaturated soil;Abe,1987
2. Preliminary experiment on shear in soil layers with a large direct-shear apparatus;Abe;J. Jpn. For. Soc,1986
3. An evaluation of tree-root effect on slope stability by tree-root strength;Abe;J. Jpn. For. Soc,1986
4. Simulation model for the distribution of tree roots—application to a slope stability model;Abe;J. Jpn. For. Soc,1990
5. Effect of tree roots on a shear zone: Modeling reinforced shear stress;Abe;Can. J. For. Res.,1991