http://qiserver.ugr.es/cod/1522414.cif
http://qiserver.ugr.es/cod/1528150.cif
http://qiserver.ugr.es/cod/1528151.cif
http://qiserver.ugr.es/cod/1528152.cif
http://qiserver.ugr.es/cod/1530375.cif
http://qiserver.ugr.es/cod/1530971.cif
http://qiserver.ugr.es/cod/2002461.cif
http://qiserver.ugr.es/cod/2002462.cif