http://qiserver.ugr.es/cod/1509292.cif
http://qiserver.ugr.es/cod/1528365.cif
http://qiserver.ugr.es/cod/1528366.cif
http://qiserver.ugr.es/cod/1528367.cif
http://qiserver.ugr.es/cod/1528368.cif
http://qiserver.ugr.es/cod/1528773.cif
http://qiserver.ugr.es/cod/1528795.cif