http://qiserver.ugr.es/cod/1530181.cif
http://qiserver.ugr.es/cod/1542198.cif
http://qiserver.ugr.es/cod/2106493.cif
http://qiserver.ugr.es/cod/2107165.cif
http://qiserver.ugr.es/cod/4002733.cif
http://qiserver.ugr.es/cod/4080844.cif
http://qiserver.ugr.es/cod/9004843.cif
http://qiserver.ugr.es/cod/9009713.cif