1
Published 2005
Manuscript
7
Published 2000
Slide
9
Journal
10
Journal
11
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Serial
12
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Journal
13
by Ashton, T. S.
Published 1950
Book
14
Published 1994
Book
15
by Dejours, Christophe
Published 2006
Book
16
Published 2004
Electronic
18
Published 2004
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19
Published 2008
Electronic
20
by Lesser, Ricardo
Published 2014
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