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WikiPedia: Bernhard Riemann http://cantic.bnc.cat/registres/CUCId/a1098060x http://www.swemorph.com http://www.swemorph.com/pdf/anaeng-r.pdf http://www.travel-island.com/holger.riemann.html http://www.emis.de/classics/Riemann/ http://www.fh-lueneburg.de/u1/gym03/englpage/chron... http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?... http://www.maths.tcd.ie/pub/HistMath/People/Rieman... http://www.maths.tcd.ie/pub/HistMath/People/Rieman... http://uli.nli.org.il/F/?func=direct&doc_number=00...