LEON, M., LAING, R., MALINS, J. and SALMAN, H.S. 2015. Making collaboration work: application of a conceptual design stages protocol for pre-BIM stages. In Mahjoubi, L., Brebbia, C.A. and Laing, R. (eds.) Building information modelling (BIM) in design, construction and operations. WIT transactions on the built environment, 149. Southampton: WIT Press, pages 205-216.