http://qiserver.ugr.es/cod/1506327.cif
http://qiserver.ugr.es/cod/1506328.cif
http://qiserver.ugr.es/cod/1506329.cif
http://qiserver.ugr.es/cod/1506330.cif
http://qiserver.ugr.es/cod/1506331.cif
http://qiserver.ugr.es/cod/1506332.cif
http://qiserver.ugr.es/cod/1506333.cif
http://qiserver.ugr.es/cod/1506334.cif