http://qiserver.ugr.es/cod/1523479.cif
http://qiserver.ugr.es/cod/1523480.cif
http://qiserver.ugr.es/cod/1524278.cif
http://qiserver.ugr.es/cod/1524279.cif
http://qiserver.ugr.es/cod/1537812.cif
http://qiserver.ugr.es/cod/1537829.cif
http://qiserver.ugr.es/cod/1537831.cif
http://qiserver.ugr.es/cod/1537832.cif
http://qiserver.ugr.es/cod/1537833.cif