http://qiserver.ugr.es/cod/4507434.cif
http://qiserver.ugr.es/cod/4507435.cif
http://qiserver.ugr.es/cod/4507436.cif
http://qiserver.ugr.es/cod/4507437.cif
http://qiserver.ugr.es/cod/4507884.cif
http://qiserver.ugr.es/cod/4508113.cif
http://qiserver.ugr.es/cod/4508114.cif
http://qiserver.ugr.es/cod/4508115.cif
http://qiserver.ugr.es/cod/4508610.cif