http://qiserver.ugr.es/cod/1522312.cif
http://qiserver.ugr.es/cod/1527701.cif
http://qiserver.ugr.es/cod/1527702.cif
http://qiserver.ugr.es/cod/1538892.cif
http://qiserver.ugr.es/cod/1540338.cif
http://qiserver.ugr.es/cod/1540339.cif