3-Draw: a three dimensional computer aided design tool. - Emanuel Sachs; David Stoops; Andrew Roberts (SMC, 1989)

3-Draw: a tool for designing 3D shapes. - Emanuel Sachs; Andrew Roberts; David Stoops (IEEE Computer Graphics and Applications, 1991)

Behavioural Rule Discovery from Swarm Systems. - David Stoops; Hui Wang 001; George Moore; Yaxin Bi (KSEM, 2010)

Rule discovery from swarm systems. - David Stoops (2011)