http://qiserver.ugr.es/cod/1524309.cif
http://qiserver.ugr.es/cod/1524310.cif
http://qiserver.ugr.es/cod/1524311.cif
http://qiserver.ugr.es/cod/1530139.cif
http://qiserver.ugr.es/cod/1530407.cif
http://qiserver.ugr.es/cod/1530772.cif
http://qiserver.ugr.es/cod/9011924.cif
http://qiserver.ugr.es/cod/9011925.cif