http://qiserver.ugr.es/cod/1544617.cif
http://qiserver.ugr.es/cod/1544618.cif
http://qiserver.ugr.es/cod/1544619.cif
http://qiserver.ugr.es/cod/1544620.cif
http://qiserver.ugr.es/cod/1544621.cif
http://qiserver.ugr.es/cod/9014061.cif
http://qiserver.ugr.es/cod/9014525.cif
http://qiserver.ugr.es/cod/9015491.cif