Grams, Thorsten ; Haag-Kerwer, ; Olivares, ; Ball, ; Arndt, ; Popp, ; Medina, ; Lüttge, (1997)
Comparative measurements of chlorophyll a fluorescence, acid accumulation and gas exchange in exposed and shaded plants of Clusia minor L and Clusia multiflora H.B.K. in the field.
In: Trees. 11 (1997), S. 240-247
Article

Haag-Kerwer, A. ; Grams, ; Olivares, ; Ball, ; Arndt, ; Popp, ; Medina, ; Lüttge, (1996)
Comparative measurements of gas-exchange, acid accumulation and chlorophyll fluorescence of different species of Clusia showing C3-photosynthesis, or crassulacean acid metabolism, at the same field site in Venezuela.
In: New phytologist. 134 (1996), S. 215-226
Article