VOLUME 2 1997 NUMBER 3

Jürgen Duske, Rainer Parchmann:
Non-Synchronized Pattern Languages are IO-Macro Languages143–149
Victor Mitrana:
Crossover Systems. A Generalization of Splicing Systems151–160
Markus E. Nebel:
New Results on the Stack Ramification of Binary Trees161–175
Kai Salomaa, Sheng Yu:
NFA to DFA Transformation for Finite Languages over Arbitrary Alphabets177–186
Ferucio Laurenţiu Ţiplea, Cristian Ene:
Hierarchies of Petri Net Languages and a Super-Normal Form187–204