1. Silke, S., Wolfgang, H. S. (1991). Biochemical and Biophysical Research Communications. May 31, 447–452
2. Teng, D., Fan, Y., Yang, Y. L., Tian, Z. G., Luo, J., & Wang, J. H. (2007). Applied Genetics and Molecular Biotechnology., 74(5), 1074–1083.
3. Declan, L. G., Hilde, H. W. (2005). Master Brewers Association of the Americas Technical Quarterly. 42, 184–198.
4. Li, S., Sauer, W. C., Huang, S. X., & Gabert, V. I. (1996). Journal of Animal Science., 74, 1649–1656.
5. Planas, A. (2000). Biochimeca et Biophysica Acta., 1543, 361–382.