http://qiserver.ugr.es/cod/1509653.cif
http://qiserver.ugr.es/cod/1509789.cif
http://qiserver.ugr.es/cod/1528129.cif
http://qiserver.ugr.es/cod/1539635.cif
http://qiserver.ugr.es/cod/1539636.cif
http://qiserver.ugr.es/cod/1541355.cif