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by David Corfield
by Brown; James Robert
by Simmonite, W. J.
by Carus, Paul
by Enfield, William
by Ernest,Paul
by Bostock, David
by Weyl, Hermann; Helmer, Olaf; Wilczek, Frank
by Despiau, M. L.
by Krajewski, S.; Marek, W.; Mirkowska, G.; et al.