https://bibliotecas.ipb.pt/cgi-bin/koha/opac-search.pl?q=ccl=au%3APeter%20Groneck%2C%20Bettina%20Goetze-Speer%2C%20Christian%20P.%20Speer&format=rss2 Search results for 'au:Peter Groneck, Bettina Goetze-Speer, Christian P. Speer' at Bibliotecas do IPB 0 20