Exponential bounds for the running time of a selection algorithm
Complete problems in the first-order predicate calculus
An n log n algorithm for determining the congruity of polyhedra
Finding pseudoperipheral nodes in graphs
Commutative One-counter languages are regular
On the fixpoints of nondeterministic recursive definitions
A generalized nexttime operator in temporal logic
Weak equivalence in a class of structured program schemes
Consistency in nondeterministic storage