The following is probably the set of those papers at the conference which address some aspect(s) of Reasoning about Actions and Change.
Baral, Chitta, Alfredo Gabaldon, and Alessandro Provetti: Formalizing Narratives Using Nested Circumscription. Topics: [filtering]. Code: [Baral96B].
Brajnik, Giorgio, and Daniel J. Clancy: Temporal Constraints on Trajectories in Qualitative Simulation. Topics: [qual-physics]. Code: [Brajnik96A].
De Giacomo, Giuseppe, and Xiao Jun Chen: Reasoning about Nondeterministic and Concurrent Actions: A Process Algebra Approach. Topics: [process-alg], [concurrency], [nondeterminism]. Code: [Giacomo96A].
Fusaoka, Akira: Situation Calculus on a Dense Flow of Time. Topics: [continuous], [sit-calculus]. Code: [Fusaoka96A].
Geffner, Hector: Temporal Reasoning with Incomplete Information: A Unifying Model. Code: [Geffner96A].
Herrmann, Christoph S., and Michael Thielscher: Reasoning about Continuous Processes. Topics: [continuous]. Code: [Herrmann96A].
Kartha, Neelakantan: On the range of applicability of Baker's approach to the frame problem. Topics: [Baker-minim], [assessment]. Code: [Kartha96B].
Li, Renwei, and Luís Moniz Pereira: What Is Believed Is What Is Explained (Sometimes). Topics: [knowledge]. Code: [Li96A].
Lin, Fangzhen: Embracing Causality in Specifying the Indeterminate Effects of Actions. Topics: [ramification], [nondeterminism]. Code: [Lin96B].
Shanahan, Murray: Noise and the Common Sense Informatic Situation for a Mobile Robot. Topics: [cogrobotics]. Code: [Shanahan96C].