http://qiserver.ugr.es/cod/1509695.cif
http://qiserver.ugr.es/cod/1534405.cif
http://qiserver.ugr.es/cod/1534409.cif
http://qiserver.ugr.es/cod/1534735.cif
http://qiserver.ugr.es/cod/1534739.cif
http://qiserver.ugr.es/cod/1534742.cif
http://qiserver.ugr.es/cod/1536961.cif
http://qiserver.ugr.es/cod/1537255.cif
http://qiserver.ugr.es/cod/1537259.cif
http://qiserver.ugr.es/cod/1537263.cif