Inverted Signature Trees: An Efficient Text Searching Technique for Use with CD-ROMs. - Alan L. Tharp; Lorraine K. D. Cooper (RIAO, 1988)

Inverted signature trees and text searching on CD-ROMs. - Lorraine K. D. Cooper; Alan L. Tharp (Inf. Process. Manag., 1989)

Multi-character Tries for Text Searching. - Lorraine K. D. Cooper; Alan L. Tharp (Inf. Process. Manag., 1993)