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V Haarslev, R. Möller, and C. Schröder, ``Combining Spatial and Terminological Reasoning'', in KI-94: Advances in Artificial Intelligence -- Proc. 18th German Annual Conference on Artificial Intelligence, Saarbrücken, Sept. 18--23, 1994, B. Nebel and L. Dreschler-Fischer, Eds. Sept. 1994, vol. 861 of Lecture Notes in Artificial Intelligence, pp. 142--153, Springer Verlag, Berlin.

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K.M. Kahn and V.A. Saraswat, ``Complete Visualizations of Concurrent Programs and their Executions'', in 1990 IEEE Workshop on Visual Languages, Skokie/IL, Oct. 4-6, 1990. Oct. 1990, pp. 7--14, IEEE Computer Society Press, See also Technical Report SSL-90-38 [P90-00099], Xerox Palo Alto Research Center , 1990.

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W. Citrin, M. Doherty, and B. Zorn, ``Formal Semantics of Control in a Completely Visual Programming Language'', In VL'94 [16], pp. 208--215.

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A.G. Cohn and J.M. Gooday, ``Defining the Syntax and the Semantics of a Visual Programming Language in a Spatial Logic'', in AAAI-94, Spatial and Temporal Reasoning Workshop, 1994, Preprint.

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E. Clementini, P. Di Felice, and P. van Oosterom, ``A Small Set of Formal Topological Relationships Suitable for End-User Interaction'', In Abel and Ooi [14], pp. 277--295.

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R.M. MacGregor, ``The Evolving Technology of Classification-based Knowledge Representation Systems'', In Principles of Semantic Networks: Explorations in the Representation of Knowledge [15], pp. 385--400.

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R.J. Brachman, D.L. McGuinness, P.F. Patel-Schneider, L.A. Reswnick, and A. Borgida, ``Living with Classic: When and How to Use a KL-ONE-like Language'', In Principles of Semantic Networks: Explorations in the Representation of Knowledge [15], pp. 401--456.

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K.M. Kahn, V.A. Saraswat, and V. Haarslev, ``Pictorial Janus: A Completely Visual Programming Language and its Environment (in German)'', in GI-Fachgespräch Programmieren multimedialer Anwendungen der GI-Jahrestagung 1991, Darmstadt, Oktober 1991, J. Encarnacao, Ed. 1991, pp. 427--436, Springer Verlag, Berlin.

10

V. Haarslev, ``Formal Semantics of (Completely) Visual Languages'', Technical Report , in preparation, 1995.

11

D. Brill, Loom Reference Manual, Version 2.0, Marina del Rey, 1994.

12

D. Wang and J.R. Lee, ``Pictorial concepts and a concept-supporting graphical system'', Journal of Visual Languages and Computing, vol. 4, no. 2, pp. 177--199, June 1993.

13

D. Wang and J.R. Lee, ``Visual Reasoning: its Formal Semantics and Applications'', Journal of Visual Languages and Computing, vol. 4, no. 4, pp. 327--356, Dec. 1993.

14

D. Abel and B.C. Ooi, Eds., Advances in Spatial Databases, Third International Symposium, SSD'93, Singapore, June 23-25, 1993, vol. 692 of Lecture Notes in Computer Science. Springer Verlag, Berlin, June 1993.

15

J.F. Sowa, Principles of Semantic Networks: Explorations in the Representation of Knowledge, Morgan Kaufmann Publishers, San Mateo, California, 1991.

16

1994 IEEE Symposium on Visual Languages, St. Louis, Missouri, Oct. 4-7. IEEE Computer Society Press, Oct. 1994.