Useful Sites

Citation Analysis
Quad Search [http://quadsearch.csd.auth.gr/]
Harzing’s Publish or Perish [https://harzing.com/resources/publish-or-perish]
Google Scholar [https://scholar.google.com/]
Full text databases
European Cells and Materials [-https://www.ecmjournal.org/]
Articles from Free full pdf [http://www.freefullpdf.com/]
Journals from BioMed Central [https://www.biomedcentral.com/journals]
Journals from PubMed Central [https://www.ncbi.nlm.nih.gov/pmc/]
Medical Databases
Clinical Trials in India [http://ctri.nic.in/Clinicaltrials/login.php]
Medline [https://www.medline.com/]
Others
National union catalogue of scientific serials in India [http://nucssi.niscair.res.in]
Patents
Indian Patents [http://india.bigpatents.org/]
US Patents [http://www.uspto.gov/patft/index.html]
Indian Patents [https://ipindia.gov.in/patents.htm]
Worldwide Patents [https://www.epo.org/index.html]
Free Patents [https://www.freepatentsonline.com/]
Standards
Repository [http://172.18.102.111/bis]
British Standards [http://parked.techindex.co.uk/]
IEEE Standards [https://standards.ieee.org/]
ASTM Standards [https://www.astm.org/]
BIS Standards [https://www.bis.gov.in/]
IEC Standards [https://www.iec.ch/homepage]
ISO Standards [https://www.iso.org/home.html]
NSSN Global Standards Search [https://www.lib.auth.gr/el/nssn ]