Geometrical Product Specifications (GPS) - Geometrical features - Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature— 14 стр.
Geometrical product specifications (GPS) - Straightness - Part 1: Vocabulary and parameters of straightness (ISO 12780-1:2011); German version EN ISO 12780-1:2011— 20 стр.