Sliding Control of Force Reflecting Teleoperation: Preliminary Studies. - Pietro Buttolo; Petter Braathen; Blake Hannaford (Presence Teleoperators Virtual Environ., 1994)

The Individuation of Social Systems: A Cognitive Framework. - Marta Lenartowicz; David (Weaver) Weinbaum; Petter Braathen (BICA, 2016)