2. Baze de date specializate
2.1. Stiintele naturii
Prezentarea bazei de date
Ghid de utilizare
https://pubs.aip.org/
http://journals.aps.org/
http://iopscience.iop.org/journals
https://pubs.acs.org
https://pubs.rsc.org/
https://scifinder.cas.org
https://mathscinet.ams.org/mathscinet/index.html
