http://qiserver.ugr.es/cod/1524788.cif
http://qiserver.ugr.es/cod/1524789.cif
http://qiserver.ugr.es/cod/1529571.cif
http://qiserver.ugr.es/cod/1530351.cif
http://qiserver.ugr.es/cod/9012903.cif
http://qiserver.ugr.es/cod/9012904.cif
http://qiserver.ugr.es/cod/9012905.cif