http://qiserver.ugr.es/cod/1521084.cif
http://qiserver.ugr.es/cod/1542921.cif
http://qiserver.ugr.es/cod/1542922.cif
http://qiserver.ugr.es/cod/1543882.cif
http://qiserver.ugr.es/cod/1573899.cif
http://qiserver.ugr.es/cod/1573900.cif
http://qiserver.ugr.es/cod/1573901.cif
http://qiserver.ugr.es/cod/1574285.cif
http://qiserver.ugr.es/cod/1577381.cif
http://qiserver.ugr.es/cod/9013139.cif
http://qiserver.ugr.es/cod/9013140.cif