http://qiserver.ugr.es/cod/1570934.cif
http://qiserver.ugr.es/cod/1570935.cif
http://qiserver.ugr.es/cod/1570936.cif
http://qiserver.ugr.es/cod/1570937.cif
http://qiserver.ugr.es/cod/1571001.cif