Oil classification and biodegradation in Daerqi oilfield, Baiyinchagan depression
Tan Yuming, Feng Jianghui, Zhang Yunxian, Jin Guangxing, Pan Changchun, Sheng Guoying, Fu Jiamo
Oil & Gas Geology . 2004, (4): 437 -443 .  DOI: 10.11743/ogg20040413