http://qiserver.ugr.es/cod/1522920.cif
http://qiserver.ugr.es/cod/1525039.cif
http://qiserver.ugr.es/cod/1525315.cif
http://qiserver.ugr.es/cod/1537778.cif
http://qiserver.ugr.es/cod/9011962.cif
http://qiserver.ugr.es/cod/9011963.cif
http://qiserver.ugr.es/cod/9011964.cif
http://qiserver.ugr.es/cod/9011965.cif