On permuting letters of words in context-free languages

• 30 June 1972
• journal article
• Published by Elsevier in Information and Control
• Vol. 20  (5) , 405-409
• https://doi.org/10.1016/s0019-9958(72)90821-2

Abstract

Keywords

• PERMUTING LETTERS
• WORDS IN CONTEXT
• CONTEXT FREE LANGUAGES
• LETTERS OF WORDS