http://qiserver.ugr.es/cod/1510414.cif
http://qiserver.ugr.es/cod/1510910.cif
http://qiserver.ugr.es/cod/1537975.cif
http://qiserver.ugr.es/cod/1537976.cif
http://qiserver.ugr.es/cod/1537977.cif
http://qiserver.ugr.es/cod/1537978.cif