Hultgren, A. (1927). The fatigue properties, impact resistance and hardness of some nickel-chromium gear steels, case-hardened, oil-hardened and air-hardened respectively. Svenska Bokhandelscentralen.
Chicago-Zitierstil (17. Ausg.)Hultgren, Axel. The Fatigue Properties, Impact Resistance and Hardness of Some Nickel-chromium Gear Steels, Case-hardened, Oil-hardened and Air-hardened Respectively. Stockholm: Svenska Bokhandelscentralen, 1927.
MLA-Zitierstil (9. Ausg.)Hultgren, Axel. The Fatigue Properties, Impact Resistance and Hardness of Some Nickel-chromium Gear Steels, Case-hardened, Oil-hardened and Air-hardened Respectively. Svenska Bokhandelscentralen, 1927.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.