http://qiserver.ugr.es/cod/1509331.cif
http://qiserver.ugr.es/cod/1534309.cif
http://qiserver.ugr.es/cod/1534310.cif
http://qiserver.ugr.es/cod/1534311.cif
http://qiserver.ugr.es/cod/1537880.cif
http://qiserver.ugr.es/cod/1541407.cif
http://qiserver.ugr.es/cod/1541596.cif
http://qiserver.ugr.es/cod/1541598.cif
http://qiserver.ugr.es/cod/1541600.cif