http://qiserver.ugr.es/cod/1100509.cif
http://qiserver.ugr.es/cod/2000093.cif
http://qiserver.ugr.es/cod/2000094.cif
http://qiserver.ugr.es/cod/2000095.cif
http://qiserver.ugr.es/cod/2000096.cif
http://qiserver.ugr.es/cod/2000097.cif
http://qiserver.ugr.es/cod/2000098.cif
http://qiserver.ugr.es/cod/2000101.cif
http://qiserver.ugr.es/cod/5000390.cif
http://qiserver.ugr.es/cod/5000392.cif