1. On computable numbers, with an application to the entscheidungs-problem;Turing;Proc. Lond. Math. Soc. Ser. 2,1936
2. A logical calculus of the ideas immanent in nervous activity;McCulloch;Bull. Math. Biophys.,1943
3. Limits on the computing power of biological systems;Conrad;Bull. Math. Biol.,1981
4. Mathematical Biophysics;Rashevsky,1936
5. Morphology of the bronchial tree in man;Horsfield;J. Appl. Physiol.,1968