http://qiserver.ugr.es/cod/1001439.cif
http://qiserver.ugr.es/cod/8104331.cif
http://qiserver.ugr.es/cod/8104332.cif
http://qiserver.ugr.es/cod/9008387.cif
http://qiserver.ugr.es/cod/9008388.cif
http://qiserver.ugr.es/cod/9008389.cif
http://qiserver.ugr.es/cod/9008390.cif