http://qiserver.ugr.es/cod/1509577.cif
http://qiserver.ugr.es/cod/1534792.cif
http://qiserver.ugr.es/cod/1536103.cif
http://qiserver.ugr.es/cod/1536487.cif
http://qiserver.ugr.es/cod/1537261.cif
http://qiserver.ugr.es/cod/1537265.cif
http://qiserver.ugr.es/cod/9012277.cif
http://qiserver.ugr.es/cod/9012278.cif