http://qiserver.ugr.es/cod/1200011.cif
http://qiserver.ugr.es/cod/1523131.cif
http://qiserver.ugr.es/cod/1527996.cif
http://qiserver.ugr.es/cod/1541584.cif
http://qiserver.ugr.es/cod/9012730.cif
http://qiserver.ugr.es/cod/9012731.cif
http://qiserver.ugr.es/cod/9012732.cif