http://qiserver.ugr.es/cod/1565036.cif
http://qiserver.ugr.es/cod/9014166.cif
http://qiserver.ugr.es/cod/9015655.cif
http://qiserver.ugr.es/cod/9015680.cif
http://qiserver.ugr.es/cod/9016091.cif
http://qiserver.ugr.es/cod/9017535.cif