Zaal, Wim
De verlakkers : literaire vervalsingen en mystificaties
Amber, 1991
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Stewart, Susan
Crimes of writing: problems in the containment of representation
Oxford University Press, 1991
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The Spectra Boax
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Spectra of graphs
Andries E. Brouwer
[Springer, ], 2012
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Cvetkovic, Dragos M.
Spectra of graphs: theory and applications
Academic Press, 1979
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