springer数据库
Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.link.springer.com
- 2015-12-19 - 收藏Engineering Village检索
Engineering Village offers access to 12 engineering literature and patent databases providing coverage from a wide range of trusted engineering sources.www.engineeringvillage.com
- 2015-12-19 - 收藏