1966 R. L. Allen iii. 88 The order..of the occupied sectors remains constant... Many of the details of this ‘sector’ analysis lie beyond the scope of the present study.
1971 D. T. Bình iii. 66 Sector analysis..primarily emphasizes the positions of units on the sentence, trunk, and predicate..levels.
1977 50 127 Only the concluding chapters give any attention to the problems of composition, and much of this is a discussion of sector analysis.