http://qiserver.ugr.es/cod/8103382.cif
http://qiserver.ugr.es/cod/9011480.cif
http://qiserver.ugr.es/cod/9014223.cif
http://qiserver.ugr.es/cod/9014342.cif
http://qiserver.ugr.es/cod/9014695.cif
http://qiserver.ugr.es/cod/9015975.cif