求虫友帮忙，几篇文章的被引用次数，急！

　　求虫友帮忙，几篇文章的被引用次数，急！。1. Jixiang Guo, Yongjie Cui, Jingjing Cao. Treatment of drilling wastewater from a sulfonated mud system. Petroleum Science, 10(01): 106-111, 2013.

2. Jixiang Guo, Chaogang Chen, Heyi Wang, Na An, Jingjing Cao. Influence of separated fractions on crude oil viscosity. Petroleum Science and Technology, 30:1–8, 2012.

3. Jixiang Guo, Jia Fang, Jingjing Cao. Characteristics of petroleum contaminants and their distribution in Lake Taihu, China. Chemistry Central Journal, 2012, 6:92.

4. Guo Jixiang, Wang Heyi, Chen Chaogang, et al. Synthesis and evaluation of an oil-soluble viscosity reducer for heavy oil. PETROLEUM SCIENCE,2010, 7(4)：536-540.

求助，帮忙查一下这几篇文章的被引次数以及期刊的最新影响因子，非常感谢！
===有问必答===
1、引用0, IF=0.474;
2、引用0, IF=0.335;
3、引用0, IF=3.281;
3、引用2, IF=0.474;