http://qiserver.ugr.es/cod/1524249.cif
http://qiserver.ugr.es/cod/1527285.cif
http://qiserver.ugr.es/cod/1531931.cif
http://qiserver.ugr.es/cod/1531932.cif
http://qiserver.ugr.es/cod/1531970.cif
http://qiserver.ugr.es/cod/1532206.cif
http://qiserver.ugr.es/cod/1541550.cif