1. The apparent digestibility of rare earth elements and their effect on crude protein and fat digestibility in pigs;Cheng;Jiangsu Agriculture Science,1994
2. Metabolism of the lanthanons in the rat;Durbin;Proceedings of the Society for Experimental Biology and Medicine,1956
3. Untersuchungen zum Einfluss von Seltenen Erden auf das Wachstum und die Schlachtleistung von Broilern;Halle;VDLUFA-Schriftenreihe,2002
4. Rare earth elements â a new generation of growth promoters for pigs?;He;Archives of Animal Nutrition,2000
5. Study on the performance enhancing effect of rare earth elements in growing and fattening pigs;He;Journal of Animal Physiology and Animal Nutrition,2001