http://qiserver.ugr.es/cod/1544625.cif
http://qiserver.ugr.es/cod/1544639.cif
http://qiserver.ugr.es/cod/1544640.cif
http://qiserver.ugr.es/cod/1544641.cif
http://qiserver.ugr.es/cod/1544642.cif
http://qiserver.ugr.es/cod/1544643.cif
http://qiserver.ugr.es/cod/1544860.cif
http://qiserver.ugr.es/cod/1545152.cif
http://qiserver.ugr.es/cod/9017504.cif