Effects of pour point depressant of EVA/nano MMT compositeson Changqing crude oil
YANG Fei, ZHANG Ying, LI Chuanxian, YAO Bo, TIAN Kai, XIAO Zuoqu
CIESC Journal . 2015, (11): 4611 -4617 .  DOI: 10.11949/j.issn.0438-1157.20150456