- Bethune, D.S. (3)
- Johnson, R.D. (3)
- Meijer, G. (3)
- Salem, J.R. (2)
- Beyers, R. (1)
- Boonman, M. (1)
- Brown, C.A. (1)
- Burbank, P. (1)
- Chambliss, D.D. (1)
- De Vries, M.S. (1)
- Dorn, H.C. (1)
- Glass, T. (1)
- Golden, W.G. (1)
- Haynes, J. (1)
- Hunziker, H.E. (1)
- Rosen, H.J. (1)
- Salem, J. (1)
- Seki, H. (1)
- Stevenson, S. (1)
- Tang, W.C. (1)
- Wendt, H.R. (1)
- Wilson, R.J. (1)
- Yannoni, C.S. (1)
- de Vires, M.S. (1)
- van Bentum, P.J.M. (1)
- van Loosdrecht, P.H.M. (1)