| 1993 | Parallel BNLC Graph Grammars. | Hans-Joachim Rder |
| 1993 | Deciding Multiplicity Equivalence for Certain Context-free Languages. | Danny Raz |
| 1993 | Contextual Grammars: Erasing, Determinism, One-Side Contexts. | Gheorghe Paun, Grzegorz Rozenberg, Arto Salomaa |
| 1993 | On the Power of Communication Structure for Distributive Generation of Languages. | Dana Pardubsk |
| 1993 | Geometrical OL-Systems Coming from Tilings of the Plane. | Philippe Narbel |
| 1993 | Programmed Grammar Systems. | Valeria Mihalache |
| 1993 | Fractals, Dimension, and Formal Languages. | Wolfgang Merzenich, Ludwig Staiger |
| 1993 | Hidden Grammars. | Solomon Marcus |
| 1993 | Repetitions in Kolakoski Sequence. | Arto Lepist |
| 1993 | Lindenmayer Systems Generalized to Formal Power Series and Their Growth Functions. | Werner Kuich |
| 1993 | General Formal Systems. | Manfred Kudlek |
| 1993 | Nondeterministic, Probabilistic and Alternating Computations on Cellular Array Models. | Kamala Krithivasan, Meena Mahajan |
| 1993 | Productions in Stable OL-Systems. | Alica Kelemenov, Peter Vajgel |
| 1993 | Morphic Images of Gauss Codes. | Jarkko Kari, Valtteri Niemi |
| 1993 | Tree Languages Recognizable by Regular Frontier Check. | Eija Jurvanen, Andreas Potthoff, Wolfgang Thomas |
| 1993 | Low-Level Tradeoffs between Reversals and Alternations. | Kazuo Iwama |
| 1993 | The Strong Equivalence of ETOL Grammars. | Gabriel Istrate |
| 1993 | Deterministic Versus Nondeterministic Space in Terms of Synchronized Alternating Machines. | Juraj Hromkovic, Branislav Rovan, Anna Slobodov |
| 1993 | On Lindenmayerian Series in Complete Semirings. | Juha Honkala |
| 1993 | Two-Dimensional Languages and Recognizable Functions. | Dora Giammarresi |
| 1993 | On the Index of Pure Context-free Grammars and Languages. | Gianina Georgescu |
| 1993 | Aspects of N-Dimensional Lindenmayer Systems. | Rudolf Freund |
| 1993 | Remarks on Adult Languages of Propagating Systems with Restricted Parallelism. | Henning Fernau |
| 1993 | An Introduction to Context-free Text Grammars. | Andrzej Ehrenfeucht, Hendrik Jan Hoogeboom, Paulien ten Pas, Grzegorz Rozenberg |
| 1993 | Generating Self-Affine Fractals by Collage Grammars. | Frank Drewes, Annegret Habel, Hans-Jrg Kreowski, Stefan Taubenberger |