1.science direct
http://www.sciencedirect.com/
2. ieee xplore
http://ieeexplore.ieee.org/Xplore/home.jsp
3.spischolar
http://www.spischolar.com/
4.百度学术
5.中国知网(含高级搜索功能,可以自动过滤EI和SCI文章)
1.science direct
http://www.sciencedirect.com/
2. ieee xplore
http://ieeexplore.ieee.org/Xplore/home.jsp
3.spischolar
http://www.spischolar.com/
4.百度学术
5.中国知网(含高级搜索功能,可以自动过滤EI和SCI文章)