2021UNE-EN ISO 19135-1:2016/A1:2021 Geographic information - Procedures for item registration - Part 1: Fundamentals - Amendment 1 (ISO 19135-1:2015/Amd 1:2021)
2016UNE-EN ISO 19135-1:2016 Geographic information - Procedures for item registration - Part 1: Fundamentals (ISO 19135-1:2015)