https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=2181%26limit%3Dlocation%3AGEN%26limit%3Dau%3AHeinz%2C%20Weirich&format=rss2 Search results for 'an,phr: 2181&limit=location:GEN&limit=au:Heinz, Weirich' at Biblioteca UGB 0 20