由于本校没有购买EI数据库，麻烦有条件的大佬帮忙发一下以下4篇文章的EI检索报告，就是电子版的那一页纸即可，第一作者都是zhang lei：
1.An analysis of influence factors of income payment in developing countries.
2.Empirical research on the impact of usage of electronic money on money multiplier in china.
3.The dynamic adjustment of  china's manufacturing listed enterpries' debt ratio--a study based on system GMM estimation.
4.A research on the effect of tourism industry on regional economic growth in China.