2012DIN 18709-3:2012-10 Concepts, abbreviations and symbols in geodesy - Part 3: Hydrographic surveying
2012DIN 18709-3:2012 Concepts, abbreviations and symbols in geodesy - Part 3: Hydrographic surveying
1982DIN 18709-3:1982 Concepts, abbreviations and symbols in surveying; hydrographic surveying
DIN 18709-3:2012 Concepts, abbreviations and symbols in geodesy - Part 3: Hydrographic surveying was changed to LST HD 60364-5-54-2011 Low-voltage electrical installations -- Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors (IEC 60364-5-54:2011).