1. Beatty, J.: 1981, 'What's Wrong with the Received View of Evolutionary Theory?', in P. Asquith and R.M. Giere (eds.), PSA 1980, Vol. 2, Philosophy of Science Association, East Lansing, MI, pp. 397–426.
2. Beckner, M.: 1969. 'Function and Teleology', Journal of the History of Biology 2(1), 151–164.
3. Goudge, T.A.: 1961, The Ascent of Life, University of Toronto Press, Toronto.
4. Grene, M.: 1959, 'Two Evolutionary Theories', British Journal for the Philosophy of Science 9, 110–127, 185–193.
5. Hempel, C.G.: 1966, Philosophy of Natural Science, Prentice-Hall, 6Englewood Cliffs, NJ.