http://opac.ua.pt/cgi-bin/koha/opac-search.pl?&limit=mc-ccode%3A%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27MDF%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27%27&limit=au%3ABach%2C%20Johann%20Sebastian%2C&limit=se%3ADas%20alte%20Werk&limit=au%3ASchr%C3%AF%C2%BF%C2%BD%C3%AF%C2%BF%C2%BDder%2C%20Jaap%2C&format=rss2 Search results with limit(s): 'mc-ccode:''''''''''''''''''''''MDF'''''''''''''''''''''' au:Bach, Johann Sebastian, se:Das alte Werk au:Schr��der, Jaap,' at Bibliotecas UA 0 20