http://qiserver.ugr.es/cod/1510780.cif
http://qiserver.ugr.es/cod/1511149.cif
http://qiserver.ugr.es/cod/1511557.cif
http://qiserver.ugr.es/cod/1524386.cif
http://qiserver.ugr.es/cod/1537950.cif
http://qiserver.ugr.es/cod/1538641.cif
http://qiserver.ugr.es/cod/1538867.cif