Kirsch, J L; Kirsch, R A - In: Environment and Planning B: Planning and Design 13 (1986) 2, pp. 163-176
Although substantial literature exists on the properties of formal grammars, much less has been written on the use of grammars for describing the languages which they are capable of explaining, Thus we see a well-developed theory concerning the expressive (generative) power of different kinds of...