(de-de)viaf.orghttp://collection.britishmuseum.org/id/person-institution/86056collection.britishmuseum.orghttp://d-nb.info/gnd/129523291d-nb.infohttps://www.freebase.com/m/0rkmwww.freebase.comhttps://www.wikidata.org/entity/Q37065www.wikidata.org。