The power spectrum of run-length-limited codes. - Ayis Gallopoulos; Chris Heegard; Paul H. Siegel (IEEE Trans. Commun., 1989)

Maximum Entropy Charge-Constrained Run-Length Codes. - Kenneth J. Kerpez; Ayis Gallopoulos; Chris Heegard (IEEE J. Sel. Areas Commun., 1992)