Formal Languages Consisting of Primitive Words. - Pál Dömösi; Sándor Horváth; Masami Ito; László Kászonyi; Masashi Katsura (FCT, 1993)

How to Generate Binary Codes Using Context-Free Grammars. - László Kászonyi (Words, Semigroups, and Transductions, 2001)

On the Structure of Graphic DLI-Sets. - László Kászonyi (Developments in Language Theory, 2002)

A pumping lemma for DLI-languages. - László Kászonyi (Discret. Math., 2002)