| Type | Title | Author | Publisher | Year |
| Article | On a family of L languages resulting from systolic tree automata | Culik II, K., Gruska, J., Salomaa, A. | | 1983 |
| Article | On a family of linearly grammatizable languages | Paun, Gh., Novotny, M. | | 1987 |
| Article | On a family of linearly grammatizable languages | Paun, Gh., Novotny, M. | | 1987 |
| Article | On a reducing operator for combinatorial systems | Kudlek, M., Novotny, M. | | 1978 |
| Article | On a variant of a method of Berstel's and Nielsen's | Ruohonen, K. | | 1981 |
| Article | On binary equality sets and a solution to the test set conjecture in the binary case | Ehrenfeucht, A., Karhumaki, J, Rozenberg, G. | | 1983 |
| Article | On bounded interpretations of grammar forms | Csuhaj-Varju, E., Dassow, J. | | 1991 |
| Article | On bounded interpretations of grammar forms | Csuhaj-Varju, E., Dassow, J. | | 1991 |
| Article | On communication-bounded synchronized alternating finite automata | Ibarra, O.H., Nicholas, Q.T. | | 1993 |
| Article | On commutative Kleene monoids | Rupert, C.P. | | 1991 |
| Article | On cooperating/distributed grammar systems | Csuhaj-Varju, E., Dassow, J. | | 1990 |
| Article | On coordinated rewriting | Ehrenfeucht, A., Hoogeboom, H.J., Rozenberg, G. | | 1985 |
| Article | On coordinated rewriting | Ehrenfeucht, A., Hoogeboom, H.J., Rozenberg, G. | | |
| Article | On coordinated selective substitutions: toward a unified theory of grammars and machines | Rozenberg, G. | | 1985 |
| Article | On coordinated selective substitutions: towards a unified theory of grammars and machines | Rozenberg, G. | | 1985 |
| Article | On covarieties of coalgebras | Marvan, M. | | 1983 |
| Article | On derivation languages corresponding to context-free grammars | Penttonen, M. | | 1974 |
| Article | On epsilon productions for terminals in E0L forms | Ainhirn, W., Maurer, H.A. | | 1979 |
| Article | On finite grammar forms | Maurer, H.A., Salomaa, A., Wood, D. | | 1983 |
| Article | On form-equivalence of deterministic pure grammar forms | Hagauer, J. | | 1982 |
| Article | On form-equivalence of deterministic pure grammar forms | Hagauer, J. | | 1982 |
| Article | On form-equivalence of deterministic pure grammar forms | Hagauer, J. | | 1980 |
| Article | On generalized words of Thue-Morse | Cerny, A. | | 1986 |
| Article | On generators and generative capacity of E0L forms | Maurer, H.A., Salomaa, A., Wood, D. | | 1978 |
| Article | On gramamr forms with terminal context | Maurer, H.A., Wood, D. | | 1976 |
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