1. H. Ouchida, K. Chijiiwa, J. Hoshino, K. Nishioka, Fatigue strength of carbon-steel castings. Bull. JSME 10(39), 438 (1967)
2. A. Kinzel, Method of casting steel ingots. USA Patent (1932).
3. E. Ryntz, R. Schroeder, W. Chaput, W. Rassenfoss, The formation of blowholes in nodular iron castings. AFS Trans. 91, 161 (1983)
4. R. Fruehan, The making, shaping and treating of steel, 11 ed.; vol Steelmaking and Refining. AIST: Pittsburgh, PA (1998)
5. W. Simmons, Influence of metal filtration on the production of high integrity cast products. Foundry Trade J. 24 (1985)