http://qiserver.ugr.es/cod/1001177.cif
http://qiserver.ugr.es/cod/1001178.cif
http://qiserver.ugr.es/cod/1001179.cif
http://qiserver.ugr.es/cod/1001775.cif
http://qiserver.ugr.es/cod/1001816.cif
http://qiserver.ugr.es/cod/1001839.cif
http://qiserver.ugr.es/cod/9009943.cif
http://qiserver.ugr.es/cod/9017405.cif