1. Chen XC, Yi SS, Wang ZL (1985) Metallurgical behavior of rare earth ferrosilicon, magnesium, aluminum, calcium polyspheroidizing agent in hot metal. J Chin Soc Rare Earths 3(4):19–25
2. Chipman J, Floridis TP (1955) Activity of aluminum in liquid Ag-Al, Fe-Al, Fe-Al-C, and Fe-Al-C-Si alloys. Acta Metall 3(5):456–459
3. Du T, Han QY, Wang CZ (1995) Physical chemistry of rare earth alkali soil and its application in materials. Science Press, Beijing, pp 330–334
4. Huang HS, Qiu HQ, Sheng D (1987) Research, production and application of rare earth vermicular graphite cast iron in china. In: Application of rare earth in steel. Metallurgical Industry Press,Beijing, pp 94–106
5. Janke D, Fischer WA (1973) The activity of oxygen in phosphorous copper and nickel melts. Arch Eisenhüttenwes 44(1):15–18