http://qiserver.ugr.es/cod/8103693.cif
http://qiserver.ugr.es/cod/8103694.cif
http://qiserver.ugr.es/cod/8103706.cif
http://qiserver.ugr.es/cod/9008303.cif
http://qiserver.ugr.es/cod/9008304.cif