Editorial Board
Qualitative reasoning about physical systems: A return to roots
Order of magnitude reasoning
A theory of interactions: unifying qualitative and quantitative algebraic reasoning
Cmpositional modeling: finding the right model for the job
Graphs of models
Understanding complex dynamics by visual and symbolic reasoning
Modeling digital circuits for troubleshooting
Dynamic across-time measurement interpretation
Higher-order derivative constraints in qualitative simulation
Computational kinematics
Qualitative spatial reasoning: The CLOCK project
Author index—Volume 51 (1991)