http://psychology.about.com/od/sigmundfreud/p/sigmund_freud.htm
http://www.alleydog.com/glossary/definition.php?term=Proactive%20Interference
http://changingminds.org/explanations/behaviors/coping/repression.htm
http://www.brainrules.net
http://www.uni.edu/walsh/memory.pdf
http://www.alleydog.com/glossary/definition.php?term=Proactive%20Interference
http://changingminds.org/explanations/behaviors/coping/repression.htm
http://www.brainrules.net
http://www.uni.edu/walsh/memory.pdf