Walter J. Savitch. Ambiguous Developmental Plans. In Aristid Lindenmayer, Grzegorz Rozenberg, editors, Automata, Languages, Development: At the crossroads of biology, mathematics and computer science, result of an international conference held at Noordwijkerhout, The Netherlands, March 31 - April 6, 1975. pages 293-300, North-Holland Publishing Company, 1975.
Abstract is missing.