1. Baker, R., Herman, G. T.: CELIA?A cellular linear iterative array simulator. Proc. fourth conf. applications of simulations, Princeton, 63?73 (1970)
2. Baker, R., Herman, G. T.: Simulation of organisms using a developmental model. Part I: Basic description. Part II: The heterocyst formation problem in blue-green algae. J. Bio-Med. Comp. 3, 201?215, 251?267 (1972)
3. Evans, L. T.: The induction of flowering. Victoria, Australia: Macmillan Comp. 1969
4. Lecture Notes in Computer Science;D. Frijters,1974
5. Frijters, D., Lindenmayer, A: Developmental descriptions of branching patterns with paracladial relationships. In: Automata, Languages and Development, Eds.: Lindenmayer, A., Rozenberg, G. Amsterdam: North Holland Publ. Comp. (to appear)