| 1982 | ||
|---|---|---|
| j1 | Christiane Frougny, Jacques Sakarovitch, Erich Valkema: On the Hotz Group of a Context-Free Grammar. Acta Inf. 18: 109-115 (1982) | |
| 1 | Christiane Frougny | |
| 2 | Jacques Sakarovitch |
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