HYDRA: From Cellular Biology to Shape-Changing Artefacts. - Esben Hallundbæk Østergaard; David Johan Christensen; Peter Eggenberger; Tim Taylor 001; Peter Ottery; Henrik Hautop Lund (ICANN (1), 2005)

Using differential adhesion to control self-assembly and self-repair of collections of modular mobile robots. - Peter Ottery (2006)