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http://pdf-world.net/ ebooks
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http://www.ebah.com.br
http://www.slideshare.net
http://scholar.google.com
http://scholar.google.pt
http://www.4shared.com
http://www.scribd.com http://ebookbrowse.com
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Repositorium
http://repositories.webometrics.info/en/world
http://repositorium.sdum.uminho.pt
http://repositorio-aberto.up.pt/
http://dspace.mit.edu/ MIT’s institutional repository
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Techs
http://www.hparchive.com
http://www.eetsearch.com
http://www.ti.com/general/docs/ ( search also for : Analog Applications Journal )
http://search.analog.com/search/default.aspx?query=content&local=en ( Analog Devices )
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Courses / Universities
http://ocw.mit.edu/courses/ MIT Open Courses
http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/
http://www.cs.washington.edu/education/courses/ University of Washington – Computer Science & Engineering
http://www.cs.washington.edu/research/architecture/courses/ University of Washington – Computer Science & Engineering
http://www.cs.washington.edu/education/multimedia/all-courses-on-line
http://search.gatech.edu/ Georgia Institute of technologie
http://users.ece.gatech.edu Georgia Institute of technologie
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