1. Indexed grammars—An extension of context-free grammars;Aho;J. Assoc. Comput. Mach.,1968
2. Nested stack automata;Aho;J. Assoc. Comput. Mach.,1969
3. Transductions de forêts reconnaissables monadiques; forêts corégulières;Arnold;Rev. Française Automat. Informat. Rech. Oper.,1976
4. Controlled iteration grammars and full hyper-AFLs;Asveld;Inform. and Control,1977
5. Iterated Context-independent Rewriting—An Algebraic Approach to Families of Languages;Asveld,1978