http://qiserver.ugr.es/cod/9009994.cif
http://qiserver.ugr.es/cod/9012741.cif
http://qiserver.ugr.es/cod/9014225.cif
http://qiserver.ugr.es/cod/9014282.cif
http://qiserver.ugr.es/cod/9014396.cif
http://qiserver.ugr.es/cod/9014881.cif
http://qiserver.ugr.es/cod/9015007.cif