http://qiserver.ugr.es/cod/1535081.cif
http://qiserver.ugr.es/cod/1535085.cif
http://qiserver.ugr.es/cod/1535089.cif
http://qiserver.ugr.es/cod/1535725.cif
http://qiserver.ugr.es/cod/1535757.cif
http://qiserver.ugr.es/cod/1535825.cif
http://qiserver.ugr.es/cod/1535827.cif
http://qiserver.ugr.es/cod/1535830.cif