http://qiserver.ugr.es/cod/1534948.cif
http://qiserver.ugr.es/cod/1534951.cif
http://qiserver.ugr.es/cod/1534955.cif
http://qiserver.ugr.es/cod/1534959.cif
http://qiserver.ugr.es/cod/1534963.cif
http://qiserver.ugr.es/cod/1535559.cif
http://qiserver.ugr.es/cod/1535733.cif
http://qiserver.ugr.es/cod/1536071.cif