Binary-Image-Manipulation Algorithms in the Image View Facility. - Karen L. Anderson; Fred Mintzer; Gerald Goertzel; Keith S. Pennington; Joan L. Mitchell; William B. Pennebaker (IBM J. Res. Dev., 1987)

The Early Word Catches the Weights. - Mark A. Smith; Garrison W. Cottrell; Karen L. Anderson (NIPS, 2000)