1. Visual interactive modeling as an operations research technique;Bell;Interfaces,1985
2. Visual interactive modelling: the past, the present and the prospects;Bell;European Journal of Operational Research,1986
3. Bell PC. Visual Interactive Modelling: The Methodological Issues. In: Rand, G, editor. Operational Research '87, Amsterdam: North-Holland, 1988. pp. 97–110
4. Developing a visual interactive model for corporate cash management;Bell;Journal of the Operational Research Society,1985
5. A visual interactive decision support system for workforce (nurse) scheduling;Bell;INFOR,1986