Media type: E-Article Title: Composition of relational productions for plans and programs Contributor: Vere, Steven A. imprint: Springer Science and Business Media LLC, 1979 Published in: International Journal of Computer & Information Sciences Language: English DOI: 10.1007/bf00989669 ISSN: 0091-7036; 1573-7640 Keywords: Computational Theory and Mathematics ; Theoretical Computer Science ; Information Systems ; Theoretical Computer Science ; Software Origination: Footnote: