Volume 94, Number 1, 2009
Michiro Kondo:
Algebraic Properties of Generalized Rough Sets.
41-48
Maurice Margenstern:
The Injectivity of the Global Function of a Cellular Automaton in the Hyperbolic Plane is Undecidable.
63-99
Volume 94, Number 2, 2009
Volume 94, Numbers 3-4, 2009