Generic Computation and its complexity
STOC '91 Proceedings of the twenty-third annual ACM symposium on Theory of computing
The expressiveness of a family of finite set languages
PODS '91 Proceedings of the tenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Tractable query languages for complex object databases
PODS '91 Proceedings of the tenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
On the equivalence of recursive and nonrecursive datalog programs
PODS '92 Proceedings of the eleventh ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A nested-graph model for the representation and manipulation of complex objects
ACM Transactions on Information Systems (TOIS)
On the complexity of equivalence between recursive and nonrecursive Datalog programs
PODS '94 Proceedings of the thirteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Dense-order constraint databases (extended abstract)
PODS '95 Proceedings of the fourteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
On the complexity of bounded-variable queries (extended abstract)
PODS '95 Proceedings of the fourteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Fixpoint logics, relational machines, and computational complexity
Journal of the ACM (JACM)
Object identity as a query language primitive
Journal of the ACM (JACM)
Stable models and non-determinism in logic programs with negation
PODS '90 Proceedings of the ninth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Non-deterministic languages to express deterministic transformations
PODS '90 Proceedings of the ninth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Abstract state machines and computationally complete query languages
Information and Computation
On non-determinism in machines and languages
Annals of Mathematics and Artificial Intelligence
Definability and Descriptive Complexity on Databases of Bounded Tree-Width
ICDT '99 Proceedings of the 7th International Conference on Database Theory
Abstract State Machines and Computationally Complete Query Languages
ASM '00 Proceedings of the International Workshop on Abstract State Machines, Theory and Applications
On the expressive power of variable-confined logics
LICS '96 Proceedings of the 11th Annual IEEE Symposium on Logic in Computer Science
Counting Modulo Quantifiers on Finite Linearly Ordered Trees
LICS '96 Proceedings of the 11th Annual IEEE Symposium on Logic in Computer Science
Issues in parallel execution of non-monotonic reasoning systems
Parallel Computing
Proceedings of the 35th annual ACM SIGPLAN-SIGACT symposium on Principles of programming languages
The complexity of independence-friendly fixpoint logic
CSL'05 Proceedings of the 19th international conference on Computer Science Logic
An Implicit Characterization of PSPACE
ACM Transactions on Computational Logic (TOCL)
LICS '12 Proceedings of the 2012 27th Annual IEEE/ACM Symposium on Logic in Computer Science
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