http://qiserver.ugr.es/cod/1521011.cif
http://qiserver.ugr.es/cod/1544371.cif
http://qiserver.ugr.es/cod/1545032.cif
http://qiserver.ugr.es/cod/1545170.cif
http://qiserver.ugr.es/cod/9009225.cif
http://qiserver.ugr.es/cod/9009226.cif
http://qiserver.ugr.es/cod/9009227.cif
http://qiserver.ugr.es/cod/9009228.cif
http://qiserver.ugr.es/cod/9017469.cif
http://qiserver.ugr.es/cod/9017470.cif