http://qiserver.ugr.es/cod/1510959.cif
http://qiserver.ugr.es/cod/1526223.cif
http://qiserver.ugr.es/cod/9009406.cif
http://qiserver.ugr.es/cod/9009407.cif
http://qiserver.ugr.es/cod/9009408.cif
http://qiserver.ugr.es/cod/9009409.cif
http://qiserver.ugr.es/cod/9011765.cif