http://qiserver.ugr.es/cod/1530076.cif
http://qiserver.ugr.es/cod/9009455.cif
http://qiserver.ugr.es/cod/9009456.cif
http://qiserver.ugr.es/cod/9009457.cif
http://qiserver.ugr.es/cod/9011794.cif