VOLUME 18 2013 NUMBER 1

Steffen Harbich:
On the Descriptional Complexity of k-Uniformly-Limited Lindenmayer Systems3–25
Jean-Gabriel Luque, Ludovic Mignot, Florent Nicart:
Some Combinatorial Operators in Language Theory27–52
Henk Barendregt, Venanzio Capretta, Dexter Kozen:
Reflection in the Chomsky Hierarchy53–60