http://qiserver.ugr.es/cod/1529676.cif
http://qiserver.ugr.es/cod/1530526.cif
http://qiserver.ugr.es/cod/1530527.cif
http://qiserver.ugr.es/cod/1534902.cif
http://qiserver.ugr.es/cod/1537113.cif
http://qiserver.ugr.es/cod/1541181.cif
http://qiserver.ugr.es/cod/1542023.cif
http://qiserver.ugr.es/cod/1542155.cif