easyscholar.ccの競合サイトトップ10

zotero.org

zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

scholar.google.com

google scholar provides a simple way to broadly search for scholarly literature. search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

letpub.com.cn

letpub sci论文英语润色和同行资深专家修改团队全部由以英语为母语，有长期编辑科技论文经验的编辑组成。他们来自于临床医学、生物、化学、物理、工程学 、天文学、地球与环境科学、人文社会学、商学等不同学科领域，且有丰富的sci研究论文、领域综述的发表经验，经常获邀担任一些期刊的审稿人。

sciencedirect.com

sciencedirect is the world's leading source for scientific, technical, and medical research. explore journals, books and articles.

researchgate.net

Access 160+ million publication pages and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.

pubmed.ncbi.nlm.nih.gov

New empirically derived Medline search filters have been validated to optimise retrieval of original and review QI articles.

ieeexplore.ieee.org

ieee xplore, delivering full text access to the world's highest quality technical literature in engineering and technology. | ieee xplore

onlinelibrary.wiley.com

one of the largest and most authoritative collections of online journals, books, and research resources, covering life, health, social, and physical sciences.