Technical product documentation - Springs - Part 2: Presentation of data for cylindrical helical compression springs; identical with ISO 2162-2:1993— 7 стр.
Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1: Compression springs; German version EN 13906-1:2002— 35 стр.
Technical product documentation - Springs - Part 2: Presentation of data for cylindrical helical compression springs; identical with ISO 2162-2:1993— 7 стр.