1. W.C. Ormsby, in T.T. Eighmy and W.H. Chesner (Eds), Proceedings of the First International Conference on Municipal Solid Waste Combustor Ash Utilization, UNH Printing, Durham, NH (1988), pp. 49–62
2. J. Hartlen, in: T.T. Eighmy and W.H. Chesner (Eds), Proceedings of the First International Conference on Municipal Solid Waste Combustor Ash Utilization, UNH Printing, Durham, NH (1988), pp. 33–48
3. O. Hjelmar, in: W.H. Chesner and T.T. Eighmy (Eds), Proceedings of the Third International Conference on Municipal Solid Waste Combustor Ash Utilization, UNH Printing, Durham, NH (1991), pp. 59–70
4. J. Vehlow, in: W.H. Chesner and T.T. Eighmy (Eds), Proceedings of the Third International Conference on Municipal Solid Waste Combustor Ash Utilization, UNH Printing, Durham, NH (1991), pp. 85–96
5. P. Leenders, VEABRIN, unpublished manuscript (1991)