DIN EN ISO/IEC 19788-1-2013 信息技术.学习、教育与培训.学习资源的元数据.第1部分:框架(ISO/IEC 19788-1-2011).英文版本EN ISO/IEC 19788-1-2012
Information technology - Learning, education and training - Metadata for learning resources - Part 1: Framework (ISO/IEC 19788-1:2011); English version EN ISO/IEC 19788-1:2012