1. The Germ Plasm: a Theory of Heredity;Weisman,1893
2. The genetic control of development;Waddington,1948
3. Differentiation as the controlled production of unique ezymatic patterns;Spiegelman,1948
4. Evolution of living organisms as a multilevel process;Kozlov;J Theor Biol,1979
5. Behavior, purpose and teleology;Rosenblueth;Philosophy of Science,1943