BASE (Bielefeld Academic Search Engine): Advanced Search. Browse by Subject. ERIC - Education Resources Information Center. OpenGrey. QuadSearch - MetaSearch Engine. Scholr.ly | Research, fine-tuned. Scientific Search Engine - www.OJOSE.com - Online JOurnal Search Engine - Where science meets the web :-) Microsoft Academic Search.
Refdoc. Refdoc est momentanément indisponible pour cause de maintenance. Nous vous prions de nous en excuser et vous invitons à vous reconnecter ultérieurement surwww.refdoc.fr. Google Scholar. RefSeek - Academic Search Engine. Free reference manager and PDF organizer | Mendeley. Scirus - for scientific information.