http://qiserver.ugr.es/cod/1541739.cif
http://qiserver.ugr.es/cod/1541749.cif
http://qiserver.ugr.es/cod/1541808.cif
http://qiserver.ugr.es/cod/1541993.cif
http://qiserver.ugr.es/cod/1542000.cif
http://qiserver.ugr.es/cod/1542128.cif
http://qiserver.ugr.es/cod/9009320.cif
http://qiserver.ugr.es/cod/9009321.cif
http://qiserver.ugr.es/cod/9009322.cif