1. Achinstein, P.: 1968,Concepts of Science, A Philosophical Analysis, The Johns Hopkins Press, Baltimore.
2. Alexander, E.: 1979,Museums in Motion, An Introduction to the History and Functions of Museums, American Association for State and Local History, Nashville.
3. Allee, W., A. Emerson, O. Park, T. Park, and K. Schmidt: 1949,Principles of Animal Ecology, W. B. Saunders Company, Philadelphia.
4. Beatty, J.: 1980, ‘Optimal-design Models and the Strategy of Model Building in Evolutionary Biology’,Philosophy of Science 47, 532–561.
5. Beatty, J.: 1981, ‘What's Wrong with the Received View of Evolutionary Theory?’, in R. Giere and P. Asquith (eds.),PSA 1980, Volume 2, Philosophy of Science Association, East Lansing, pp. 397–426.