Vienna 1964: Conference on Language, Description of Languages. Conference, Summer Schools etc. File MA 44/032. Paper: Towards a Formal Semantics by Christopher Strachey. Paper: On the Concept of Formal Linguistic Systems by Dott. A. Caracciolo di Forino. Paper: Contribution to the Definition of Algol Semantics by M. Nivat and N. Nolin. Paper: A System for Defining Language and Writing Programs in Natural English by R.B.E. Napper. Abstract: A Formalization of Two-Dimensional Syntax Description by Nathaniel Rochester. Paper: The Parameterization of the Translation Process by Peter Ingarman. Paper: Machines Species and their Computation Languages by Calvin C. Elgot. Paper: Well-Translatable Grammars and Algol-Like Languages by K. Culik. Paper: Classification of Chomsky Languages by M.P. Schutzenberger. Paper: The Parsing and Ambiguity Problem for CHOMSKY-Language by J. Eickel and M. Paul. Paper: IFIP Working Conference Vienna 1964. Formal Language Description Languages 14-19 September 1964.