http://qiserver.ugr.es/cod/1524004.cif
http://qiserver.ugr.es/cod/1537700.cif
http://qiserver.ugr.es/cod/1537703.cif
http://qiserver.ugr.es/cod/1538646.cif
http://qiserver.ugr.es/cod/1538648.cif
http://qiserver.ugr.es/cod/1539182.cif
http://qiserver.ugr.es/cod/1539185.cif
http://qiserver.ugr.es/cod/1539620.cif