Klaus Winter. (1996). International workshop on Crassulacean acid metabolism, held at Smithsonian Tropical Research Institute, Republic of Panama, March 21-26, 1993: Biochemistry, ecophysiology and evolution,Crassulacean acid metabolisme. New York: Springer-Verlag.

Klaus Winter. International Workshop On Crassulacean Acid Metabolism, Held At Smithsonian Tropical Research Institute, Republic of Panama, March 21-26, 1993: Biochemistry, Ecophysiology and Evolution,Crassulacean Acid Metabolisme. New York: Springer-Verlag, 1996.

Klaus Winter. International Workshop On Crassulacean Acid Metabolism, Held At Smithsonian Tropical Research Institute, Republic of Panama, March 21-26, 1993: Biochemistry, Ecophysiology and Evolution,Crassulacean Acid Metabolisme. New York: Springer-Verlag, 1996.