AdapTex: contextually adaptive text entry for mobiles. - Mark D. Dunlop; Andrew Glen; Sunil Motaparti; Sanjay Patel (Mobile HCI, 2006)

QWERTH: an optimized semi-ambiguous keyboard design. - Mark D. Dunlop; Naveen Durga; Sunil Motaparti; Prima Dona; Varun Medapuram (Mobile HCI (Companion), 2012)