publication venue for
- A characterization of poly-slender context-free languages 2000
- COMBINATORIAL PROPERTIES OF TEXTS 1993
- ON THE STRUCTURE OF RECOGNIZABLE LANGUAGES OF DEPENDENCE GRAPHS 1993
- COORDINATED PAIR SYSTEMS .1. DYCK WORKS AND CLASSICAL PUMPING 1986
- COORDINATED PAIR SYSTEMS .2. SPARSE STRUCTURE OF DYCK WORDS AND OGDENS LEMMA 1986
- EACH REGULAR CODE IS INCLUDED IN A MAXIMAL REGULAR CODE 1986
- STRONG ITERATIVE PAIRS AND THE REGULARITY OF CONTEXT-FREE LANGUAGES 1985
- ON AMBIGUITY IN DOS SYSTEMS 1984
- ON THE SEPARATING POWER OF EOL SYSTEMS 1983
- ON SUBWORD COMPLEXITIES OF HOMOMORPHIC IMAGES OF LANGUAGES 1982
- FPOL SYSTEMS GENERATING COUNTING LANGUAGES 1981