http://qiserver.ugr.es/cod/1511130.cif
http://qiserver.ugr.es/cod/1524751.cif
http://qiserver.ugr.es/cod/1524796.cif
http://qiserver.ugr.es/cod/1524797.cif
http://qiserver.ugr.es/cod/1530865.cif