http://qiserver.ugr.es/cod/1544331.cif
http://qiserver.ugr.es/cod/1544332.cif
http://qiserver.ugr.es/cod/1544359.cif
http://qiserver.ugr.es/cod/1544360.cif
http://qiserver.ugr.es/cod/1544361.cif
http://qiserver.ugr.es/cod/1544362.cif
http://qiserver.ugr.es/cod/9016046.cif