@article{ref1,
title="A New Categorization of Types of Slope Collapse in Mountain Areas",
journal="Natural hazards",
year="1998",
author="Xu, MQ and Xu, Willa and Luo, SG",
volume="17",
number="1",
pages="69-76",
abstract="Regarding the collapse of a special type of soil erosion in mountain areas. Studying its types, processes and stages can provide a scientific basis for prediction. Collapses can be classified into three types, natural, man-made and compound, and each type can be subdivided into four kinds, break-falling, pull-splitting, toppling and slipping. The processes of collapse are creep-deformation, deformation-development and break-out. The second one is subdivided into two periods, the gentle and intense.<p />",
language="",
issn="0921-030X",
doi="",
url="http://dx.doi.org/"
}