http://qiserver.ugr.es/cod/9011858.cif
http://qiserver.ugr.es/cod/9011859.cif
http://qiserver.ugr.es/cod/9011860.cif
http://qiserver.ugr.es/cod/9011861.cif
http://qiserver.ugr.es/cod/9011862.cif