M-ary signaling on rewritable/write-once optical discs: fundamental limits and actual performance. - Estuardo Licona; Pornchai Supnithi; Steven W. McLaughlin (GLOBECOM, 2001)

M-ary optical data storage: fixed versus variable length modulation. - Estuardo Licona; Steven W. McLaughlin (GLOBECOM, 2003)