http://qiserver.ugr.es/cod/1524455.cif
http://qiserver.ugr.es/cod/1524456.cif
http://qiserver.ugr.es/cod/1524553.cif
http://qiserver.ugr.es/cod/1528796.cif
http://qiserver.ugr.es/cod/1528821.cif
http://qiserver.ugr.es/cod/1528926.cif
http://qiserver.ugr.es/cod/1541655.cif