@article{Liu_2011,
title={Experimental research on the compressive fracture toughness of wing fracture of frozen soil},
volume={65},
ISSN={0165-232X},
url={http://dx.doi.org/10.1016/j.coldregions.2010.11.006},
DOI={10.1016/j.coldregions.2010.11.006},
number={3},
journal={Cold Regions Science and Technology},
publisher={Elsevier BV},
author={Liu,
Xiao-zhou and Liu,
Peng},
year={2011},
month=mar,
pages={421–428} }