DIN 18325:2012 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Track construction
2019DIN 18325:2019-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Track works
2016DIN 18325:2016 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Track works
2015DIN 18325:2015 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Track construction
2012DIN 18325:2012 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Track construction