http://qiserver.ugr.es/cod/9009387.cif
http://qiserver.ugr.es/cod/9009394.cif
http://qiserver.ugr.es/cod/9009395.cif
http://qiserver.ugr.es/cod/9009396.cif
http://qiserver.ugr.es/cod/9009397.cif
http://qiserver.ugr.es/cod/9009398.cif
http://qiserver.ugr.es/cod/9013163.cif