Surfaces for sports areas - Determination of angled ball behaviour - Tennis; German version EN 13865:2017, Corrigendum to DIN EN 13865:2017-05; German version EN 13865:2017/AC:2017— 2 стр.
Surfaces for sports areas - Synthetic turf and needle-punched surfaces primarily designed for outdoor use - Part 2: Specification for needle-punched surfaces; German version EN 15330-2:2008— 19 стр.
Surfaces for sports areas - Determination of angled ball behaviour - Tennis; German version EN 13865:2017, Corrigendum to DIN EN 13865:2017-05; German version EN 13865:2017/AC:2017— 2 стр.