http://qiserver.ugr.es/cod/9009571.cif
http://qiserver.ugr.es/cod/9009572.cif
http://qiserver.ugr.es/cod/9009573.cif
http://qiserver.ugr.es/cod/9009574.cif
http://qiserver.ugr.es/cod/9009575.cif
http://qiserver.ugr.es/cod/9009576.cif
http://qiserver.ugr.es/cod/9009577.cif
http://qiserver.ugr.es/cod/9017832.cif