http://qiserver.ugr.es/cod/1000035.cif
http://qiserver.ugr.es/cod/1531195.cif
http://qiserver.ugr.es/cod/1531198.cif
http://qiserver.ugr.es/cod/1531200.cif
http://qiserver.ugr.es/cod/1532023.cif
http://qiserver.ugr.es/cod/1532025.cif
http://qiserver.ugr.es/cod/1532027.cif
http://qiserver.ugr.es/cod/1532029.cif
http://qiserver.ugr.es/cod/9000000.cif