2015DIN EN 9320:2015-03 Aerospace series - Programme Management - General guidelines for acquisition and supply of open systems; German and English version EN 9320:2014
2015DIN EN 9320:2015 Aerospace series - Programme Management - General guidelines for acquisition and supply of open systems; German and English version EN 9320:2014
1970DIN EN 9320 E:2014-10 Aerospace series - Programme Management - General guidelines for acquisition and supply of open systems