Concrete, reinforced and prestressed concrete structures - Part 2: Concrete - Specification, properties, production and conformity - Application rules for DIN EN 206-1— 62 стр.
Prestressed concrete - Part 1: Structural members made of normal-weight concrete, with limited concrete tensile stresses or without concrete tensile stresses; Amendment A1— 5 стр.
German construction contract procedures - Part C: General technical specifications for building works - General rules for all kinds of building works— 15 стр.