http://qiserver.ugr.es/cod/1532954.cif
http://qiserver.ugr.es/cod/1533479.cif
http://qiserver.ugr.es/cod/1533560.cif
http://qiserver.ugr.es/cod/1533564.cif
http://qiserver.ugr.es/cod/1533568.cif
http://qiserver.ugr.es/cod/1533849.cif
http://qiserver.ugr.es/cod/1533851.cif
http://qiserver.ugr.es/cod/1533853.cif