http://qiserver.ugr.es/cod/1514115.cif
http://qiserver.ugr.es/cod/9009825.cif
http://qiserver.ugr.es/cod/9009826.cif
http://qiserver.ugr.es/cod/9009827.cif
http://qiserver.ugr.es/cod/9014294.cif