http://qiserver.ugr.es/cod/9013992.cif
http://qiserver.ugr.es/cod/9015215.cif
http://qiserver.ugr.es/cod/9015914.cif
http://qiserver.ugr.es/cod/9016243.cif
http://qiserver.ugr.es/cod/9016700.cif
http://qiserver.ugr.es/cod/9017836.cif
http://qiserver.ugr.es/cod/9017837.cif
http://qiserver.ugr.es/cod/9017838.cif
http://qiserver.ugr.es/cod/9017839.cif