An Analysis of Performance and Cost Factors in Searching Large Text Databases Using Parallel Search Systems. - T. R. Couvreur; R. N. Benzel; S. F. Miller; D. N. Zeitler; Dik Lun Lee; Mukesh Singhal; Niranjan G. Shivaratri; Wai Yee Peter Wong (J. Am. Soc. Inf. Sci., 1994)