http://opac.ua.pt/cgi-bin/koha/opac-search.pl?q=ccl=au%3ASperber%20Dan%2C%20and%20au%3ADucrot%2C%20Oswald%2C&format=rss2 Search results for 'au:Sperber Dan, and au:Ducrot, Oswald,' at Bibliotecas UA 0 20