1. KEN S, MARCIA K M. Mineral commodity summaries [M]. Reston: U.S. Geological Survey, 2012.
2. Comprehensive utilization of low grade ludwigite ore with blast furnace smelting [J];ZHANG;Iron and Steel,1995
3. Comprehensive utilization of ludwigite and its prospect [J];LIU;Multipurpose Utilization of Mineral Resources,2006
4. Pyrometallurgical separation of boron from iron in ludwigite ore [J];LIU;ISIJ International,1998
5. On some problems of the beneficiation of boron-iron ores [J];WANG;Metal Mine,1995