Salter, G.F., Farnish, R.J., Bradley, M.S.A. and Burnett, A.J. (2000) Segregation of binary mixtures of particles during the filling of a two-dimensional representation of a hopper. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 214 (3). pp. 197-208. ISSN 0954-4089 (Print), 2041-3009 (Online) (doi:10.1243/0954408001530056)