http://qiserver.ugr.es/cod/1534244.cif
http://qiserver.ugr.es/cod/1534245.cif
http://qiserver.ugr.es/cod/1537551.cif
http://qiserver.ugr.es/cod/2002259.cif
http://qiserver.ugr.es/cod/2002260.cif
http://qiserver.ugr.es/cod/9012332.cif