Tools for the implementation of fourth generation languages are now available (SCHA83). These tools facilitate the production of interactive systems. A language is defined by a formal grammar in which the semantic actions are embedded (MEI83).
CITATION STYLE
Engelmann, U., & Meinzer, H. P. (1985). Rules for the Design of End User Languages (pp. 240–245). https://doi.org/10.1007/978-3-642-93295-3_48
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