Freidin, Robert, 1945-, author
London The MIT Press 1992
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Lasnik, Howard, author
Blacwell , 2005
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Fanselow, Gisbert
Tubingen Francke 1987
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Dal, Ingerid
Tubingen Max Niemeyer 1952
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Speijer, J.S.
Leyden Brill 1886
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