DIN 18329:2023-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Management of road safety measures at road works
2023DIN 18329:2023-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Management of road safety measures at road works
2019DIN 18329:2019-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Management of road safety measures at road works