http://qiserver.ugr.es/cod/4512949.cif
http://qiserver.ugr.es/cod/4512950.cif
http://qiserver.ugr.es/cod/4512951.cif
http://qiserver.ugr.es/cod/4514018.cif
http://qiserver.ugr.es/cod/4515829.cif
http://qiserver.ugr.es/cod/4517186.cif
http://qiserver.ugr.es/cod/4519344.cif