http://qiserver.ugr.es/cod/1523833.cif
http://qiserver.ugr.es/cod/1528005.cif
http://qiserver.ugr.es/cod/1537306.cif
http://qiserver.ugr.es/cod/1537307.cif
http://qiserver.ugr.es/cod/1537308.cif
http://qiserver.ugr.es/cod/1537309.cif
http://qiserver.ugr.es/cod/1537310.cif
http://qiserver.ugr.es/cod/1537311.cif
http://qiserver.ugr.es/cod/1537312.cif