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Références Bibliographie

books.google.com/books?id=EfJQAAAAMAAJ
books.google.com/books?id=nYWcQgAACAAJ
books.google.com/books?id=wuWvoAEACAAJ
books.google.com/books?id=_ozWAAAAMAAJ
books.google.com/books?id=uYz-pqUD75gC
digitalcommons.trinity.edu/mono/9