semanticscholar.org 的前十大競爭對手

researchgate.net

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

mdpi.com

mdpi is a publisher of peer-reviewed, open access journals since its establishment in 1996.

scirp.org

scientific research publishing is an academic publisher with more than 200 open access journal in the areas of science, technology and medicine. it also publishes academic books and conference proceedings.

core.ac.uk

the world’s largest collection of open access research papers

taylorfrancis.com

Browse by subject to discover a wide variety of primary and critical materials on our key topics: Class and Work, Agencies and Institutions, Crime and Punishment, States of Mind, Health and Welfare, Family and Demography, Recreation and Consumption, Rural and Urban Life, Race and Empire and Gender and Sexuality. These short introductions offer a concise overview of ten key areas within British society and have been written by our academic editors, Professor Martin Hewitt and Susie Steinbach.. Click on a subject tile to read an overview of the category and view the relevant primary source documents, secondary source book chapters, journal articles and thematic essays.

sci-hub.se

sci-hub website. get free access to academic journals. download research papers for free from sciencedirect, ieee, wiley, springer, nature and others

scispace.com

SciSpace AI Super Agent links 150+ research tools: search 280 M papers, run systematic reviews, draft manuscripts & matches journals — cut research time 90%. Try free.

tandfonline.com

search and explore the millions of quality, peer-reviewed journal articles published under the taylor & francis and routledge imprints.

academia.edu

academia.edu is a place to share and follow research.