http://qiserver.ugr.es/cod/1548717.cif
http://qiserver.ugr.es/cod/1548718.cif
http://qiserver.ugr.es/cod/9017746.cif
http://qiserver.ugr.es/cod/9017747.cif
http://qiserver.ugr.es/cod/9017748.cif
http://qiserver.ugr.es/cod/9017749.cif
http://qiserver.ugr.es/cod/9017750.cif
http://qiserver.ugr.es/cod/9017751.cif
http://qiserver.ugr.es/cod/9017752.cif