Article Title,Year,Volume,Issue,Page Range,Author Effect of spatial variation of tree root characteristics on slope stability. A case study on Black Locust (Robinia pseudoacacia) and Arborvitae (Platycladus orientalis) stands on the Loess Plateau China,2012,92,,139-154,Ji Landslide susceptibility assessment in Limbe (SW Cameroon): A field calibrated seed cell and information value method,2012,92,,83-98,Che