http://qiserver.ugr.es/cod/1527179.cif
http://qiserver.ugr.es/cod/1527286.cif
http://qiserver.ugr.es/cod/1527296.cif
http://qiserver.ugr.es/cod/1527353.cif
http://qiserver.ugr.es/cod/1527793.cif
http://qiserver.ugr.es/cod/1528175.cif
http://qiserver.ugr.es/cod/1528176.cif
http://qiserver.ugr.es/cod/1540909.cif