Geotechnical investigation and testing - Geotechnical monitoring by field instrumentation - Part 2: Measurement of displacements along a line: Extensometers (ISO 18674-2:2016); German version EN ISO 18674-2:2016— 55 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Application of decorative coverings on walls and ceilings— 17 стр.