http://qiserver.ugr.es/cod/1511580.cif
http://qiserver.ugr.es/cod/1522443.cif
http://qiserver.ugr.es/cod/1522444.cif
http://qiserver.ugr.es/cod/1522445.cif
http://qiserver.ugr.es/cod/1522446.cif
http://qiserver.ugr.es/cod/1522447.cif
http://qiserver.ugr.es/cod/1522448.cif
http://qiserver.ugr.es/cod/1524855.cif