Tài liệu tham khảo

WikiPedia: Johann Wolfgang von Goethe //nla.gov.au/anbd.aut-an35129828 http://www.bartleby.com/65/go/Goethe-J.html http://www.litencyc.com/php/stopics.php?rec=true&U... http://scienceworld.wolfram.com/biography/Goethe.h... http://aleph.nkp.cz/F/?func=find-c&local_base=aut&... //www.getty.edu/vow/ULANFullDisplay?find=&role=&na... http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?... http://catalogue.bnf.fr/ark:/12148/cb11905269k http://data.bnf.fr/ark:/12148/cb11905269k //www.culture.gouv.fr/public/mistral/leonore_fr?AC...