Detlef Seese Linear Time Computable Problems and First-Order Descriptions. [Citation Graph (0, 0)][DBLP] Mathematical Structures in Computer Science, 1996, v:6, n:6, pp:505-526 [Journal]
Hans Jürgen Schneider On Outward and Inward Productions in the Categorical Graph-Grammar Approach and Delta-Grammars. [Citation Graph (0, 0)][DBLP] Mathematical Structures in Computer Science, 1996, v:6, n:6, pp:527-543 [Journal]