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
http://qiserver.ugr.es/cod/1572247.cif
http://qiserver.ugr.es/cod/1572248.cif
http://qiserver.ugr.es/cod/1572543.cif