http://qiserver.ugr.es/cod/1509538.cif
http://qiserver.ugr.es/cod/1511598.cif
http://qiserver.ugr.es/cod/1525518.cif
http://qiserver.ugr.es/cod/1539811.cif
http://qiserver.ugr.es/cod/1541199.cif