| other,9-1-J89-4003,ak | presented to characterize the class of <term> | languages | </term> obtained by adding <term> reduplication | #20104 A model is presented to characterize the class of languages obtained by adding reduplication to context-free languages. | |
| other,3-3-J89-4003,ak | </term> in a new way . The class of <term> | languages | </term> generated is shown to lie strictly | #20138 The class of languages generated is shown to lie strictly between the context-free languages and the indexed languages. |
