Experimental Study of the Fracture Toughness of Frozen Coal
ZHANG Xiao-peng, XING Huai-nian, HUANG Cheng, LIU Wei-bo, LI Lun
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2003, (4): 461 -464 .  DOI: 10.7522/j.issn.1000-0240.2003.0081