Pitkänen, Pirkko
Springer, 2012
eBooks
edited by Brian Opeskin, Richard Perruchoud, Jillyanne Redpath-Cross
Cambridge University Press,, 2012
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Plender, Richard
Sijthoff, 1972
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Horwitz, Morton J.
Harvard University Press, 1977
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Vincent Chetail, Celine Bauloz
Edward Elgar, 2015
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