#搜索引擎 #学术搜索
RefSeek - Academic Search Engine
https://www.refseek.com/
搜索引擎BASE (比菲尔德学术搜索引擎): 搜索主页
https://www.base-search.net/
Science gov for Science - Government Science Portal
https://www.science.gov/
RefSeek - Academic Search Engine
https://www.refseek.com/
搜索引擎BASE (比菲尔德学术搜索引擎): 搜索主页
https://www.base-search.net/
Science gov for Science - Government Science Portal
https://www.science.gov/
Refseek
RefSeek - Academic Search Engine
Academic search engine for students and researchers. Locates relevant academic search results from web pages, books, encyclopedias, and journals.