http://qiserver.ugr.es/cod/1007016.cif
http://qiserver.ugr.es/cod/1008713.cif
http://qiserver.ugr.es/cod/1010271.cif
http://qiserver.ugr.es/cod/1010390.cif
http://qiserver.ugr.es/cod/1010616.cif
http://qiserver.ugr.es/cod/1550494.cif
http://qiserver.ugr.es/cod/1568678.cif
http://qiserver.ugr.es/cod/2310440.cif