Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1: Compression springs; German version EN 13906-1:2002— 35 стр.
Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1: Compression springs; German version EN 13906-1:2002, Corrigendum to DIN EN 13906-1:2002-07— 2 стр.
