Sandor, L.(2010). Fatigue crack propagation in nine steels, type SAE 43XX, from 0.20 to 1.00 % C, for the simulation of the fatigue behavior in a carburized layer of the SAE 4320. Procedia Engineering, 2(1), 735-742. doi:10.1016/j.proeng.2010.03.079

Sandor, L.T. "Fatigue Crack Propagation in Nine Steels, Type SAE 43XX, From 0.20 to 1.00 % C, for the Simulation of the Fatigue Behavior in a Carburized Layer of the SAE 4320". Procedia Engineering, 2.1 ( 2010 ): 735-742.