http://qiserver.ugr.es/cod/1520911.cif
http://qiserver.ugr.es/cod/1520934.cif
http://qiserver.ugr.es/cod/1521008.cif
http://qiserver.ugr.es/cod/1521010.cif
http://qiserver.ugr.es/cod/1521085.cif
http://qiserver.ugr.es/cod/1521086.cif
http://qiserver.ugr.es/cod/1521772.cif
http://qiserver.ugr.es/cod/1521809.cif
http://qiserver.ugr.es/cod/1521810.cif
http://qiserver.ugr.es/cod/1521811.cif
http://qiserver.ugr.es/cod/1521812.cif
http://qiserver.ugr.es/cod/1521888.cif
http://qiserver.ugr.es/cod/6000106.cif