Wagner, H., Wolff, P. M., & Conference:International Congress on Medicinal Plant Research. (1977). New natural products and plant drugs with pharmacological, biological or therapeutical activity: Proceedings of the First International Congress on Medicinal Plant Research, Section A, held at the University of Munich, Germany, September 6-10, 197. Springer-Verlag.

Wagner, Hildebert, Peter Maria Wolff, and Conference:International Congress on Medicinal Plant Research. New Natural Products and Plant Drugs with Pharmacological, Biological or Therapeutical Activity: Proceedings of the First International Congress on Medicinal Plant Research, Section A, Held at the University of Munich, Germany, September 6-10, 197. Berlin: Springer-Verlag, 1977.

Wagner, Hildebert, et al. New Natural Products and Plant Drugs with Pharmacological, Biological or Therapeutical Activity: Proceedings of the First International Congress on Medicinal Plant Research, Section A, Held at the University of Munich, Germany, September 6-10, 197. Springer-Verlag, 1977.