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WikiPedia: Geoffrey_Parker http://cantic.bnc.cat/registres/CUCId/a10988014 http://vimeo.com/50056465 http://people.cohums.ohio-state.edu/parker277/ http://history.osu.edu/directory/Parker277 http://depts.washington.edu/schkatz/podcasts/katz0... http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?... http://uli.nli.org.il/F/?func=direct&doc_number=00... http://data.bibliotheken.nl/id/thes/p068386575 http://www.knaw.nl/Pages/DEF/32/988.bGFuZz1FTkc.ht... http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&N...