http://qiserver.ugr.es/cod/9014112.cif
http://qiserver.ugr.es/cod/9017391.cif
http://qiserver.ugr.es/cod/9017392.cif
http://qiserver.ugr.es/cod/9017393.cif
http://qiserver.ugr.es/cod/9017394.cif
http://qiserver.ugr.es/cod/9017894.cif