Document Type : Research Note
Authors
1 Xi’an Shiyou University, Xi’an, Shaanxi, 710065, CHINA
2 Nanjing Forestry University, Nanjing, Jiangsu, 210037, CHINA
3 Southwest Petroleum University, Chengdu, Sichuan, 610500, CHINA
4 University of Calgary, Calgary Alberta, T2N 1N4, CANADA
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