http://qiserver.ugr.es/cod/1535828.cif
http://qiserver.ugr.es/cod/1535831.cif
http://qiserver.ugr.es/cod/1538515.cif
http://qiserver.ugr.es/cod/9000053.cif
http://qiserver.ugr.es/cod/9000054.cif
http://qiserver.ugr.es/cod/9000055.cif
http://qiserver.ugr.es/cod/9000056.cif
http://qiserver.ugr.es/cod/9000057.cif
http://qiserver.ugr.es/cod/9000058.cif
http://qiserver.ugr.es/cod/9000059.cif