E. Gäumann, St. Naef-Roth undH. Kobel, Phytopath. Z.20, 1 (1952).
Pl. A. Plattner, W. Keller undA. Boller, Helv. chim. Acta37, 1379 (1954).
E. Hardegger undE. Nikles, Helv. chim. Acta39, 223 (1956).
E. Gäumann, St. Naef-Roth undH. Kobel, Phytopath. Z.20, 1 (1952).
T. Yabuta, K. Kambe undT. Hayashi, J. Agric. chem. Soc. Japan10, 1059 (1934).
Ch. Stoll, Phytopath. Z.22, 233 (1954).
B. D. Sanwal, Phytopath. Z.25, 333 (1956).
K. Lakshminarayanan undD. Subramanian, Nature176, 679 (1955).
H. Kern undB. D. Sanwal, Phytopath. Z.22, 449 (1954).
Zum Beispiel:M. Calvin, Ch. Heidelberger, J. C. Reid, B. M. Tolbert undP. E. Yankwich,Isotopic Carbon (J. Wiley & Sons, Inc., New York 1949).
D. D. van Slyke, J. Plazin undJ. R. Weisiger, J. biol. Chem.191, 299 (1951).
T. Yabuta, K. Kambe undT. Hayashi, J. Agric. chem. Soc. Japan10, 1059 (1934).
Ch. Stoll, Phytopath. Z.22, 233 (1954).