References
Ernst Mayr
Teleological and teleonomic, a new analysis
1985
in: A portrait of twenty-five years, Dordrecht : Springer
Evolution and ethics
1984
in: Darwin, Marx and Freud, Dordrecht : Springer
Teleological and teleonomic, a new analysis
1974
in: Methodological and historical essays in the natural and social sciences, Dordrecht : Springer