http://qiserver.ugr.es/cod/1509151.cif
http://qiserver.ugr.es/cod/1523994.cif
http://qiserver.ugr.es/cod/1523995.cif
http://qiserver.ugr.es/cod/1524596.cif
http://qiserver.ugr.es/cod/1524622.cif
http://qiserver.ugr.es/cod/1524623.cif
http://qiserver.ugr.es/cod/1539362.cif