52.
Von Elbe, J.H. (2003). Betalains. In R.E. Wrolstad, T.E. Acree, E.A. Decker, M.H. Penner, D.S., Reid, S.J. Schwartz, C.F. Shoemaker, D.M. Smith, P. Sporns (Eds.), Handbook of Food Analytical Chemistry. Pigments, Colorants, Flavors, Texture, and Bioactive Food Components. John Wiley and Sons, Inc., New York, USA, pp. 123-131.