Encyclopedia of Plant Physiology, New Series. Editors: Pirson, A.; Zimmermann, M.H., Vol. 12, Part A (in 4 parts) Physiological Plant Ecology I. Responses to the Physical Environment, Editors: Lange, O.L.; Nobel, P.S.; Osmond, C.B.; Ziegler, H., Springer‐Verlag, Berlin–Heidelberg–New York, 1981, 110 figs. XV, 625 pages. Cloth DM 239,–