German construction contract procedures - Part C: General technical specifications for building works - Gas, water and sewage plumbing works inside of buildings— 20 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Dry lining and partitioning work— 23 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Insulation of service installations— 12 стр.