Aerospace; cockpit utility lights with adjustable light intensity and colour change; technical specification
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/1985

Aerospace – Cockpit utility lights with adjustable light intensity and colour change – Technical specification; Inactive for new design
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2014