Volume 73, Number 1, 1987
Wojciech Rytter:
Parallel Time O(log n) Recognition of Unambiguous Context-free Languages. 75-86
Volume 73, Number 2, 1987
Ming Li,
Yaacov Yesha:
Separation and Lower Bounds for ROM and Nondeterministic Models of Parallel Computation. 102-128
Adam Obtulowicz:
Algebra of Constructions. I. The Word Problem for Partial Algebras. 129-173
Volume 73, Number 3, 1987