Check out the main journal portals
PERIÓDICOS USP E CAPES
Electronic Journals subscribed by USP and CAPES.
CNEN / LivRe
Free access digital periodicals portal.
Gallica BNF
Digital collection of the National Library of France.
PloS ONE
Electronic journals with articles on medical and scientific research.
Periódicos Brasileiros - Brazilian Journals
Revistas USP
Portal of Magazines published by USP.
Scielo Brazil
Digital library of Brazilian journals.
Journals of the Society for Industrial and Applied Mathematics.
Google Scholar is a freely accessible virtual search engine that organizes and lists full texts or metadata from academic literature in a wide variety of publishing formats.