http://qiserver.ugr.es/cod/1522314.cif
http://qiserver.ugr.es/cod/1538760.cif
http://qiserver.ugr.es/cod/2002435.cif
http://qiserver.ugr.es/cod/2002436.cif
http://qiserver.ugr.es/cod/9012392.cif