DisplayObjects: functional prototyping on real objects. - Eric Akaoka; Roel Vertegaal (CHI Extended Abstracts, 2009)

Context menus for the real world: the stick-anywhere computer. - G. Julian Lepinski; Eric Akaoka; Roel Vertegaal (CHI Extended Abstracts, 2009)

DisplayObjects: prototyping functional physical interfaces on 3d styrofoam, paper or cardboard models. - Eric Akaoka; Tim Ginn; Roel Vertegaal (TEI, 2010)