http://qiserver.ugr.es/cod/1529639.cif
http://qiserver.ugr.es/cod/1530405.cif
http://qiserver.ugr.es/cod/1530671.cif
http://qiserver.ugr.es/cod/1550288.cif
http://qiserver.ugr.es/cod/9009715.cif
http://qiserver.ugr.es/cod/9009716.cif