1. Bresch, J.F.; Reiter, E.R.; Iyer, H.K.; Malm, W.C. In Visibility Protection - Research and Policy Aspects; Bhardwaja, P.S., Ed.; A&WMA: Pittsburgh, PA, 1987; pp 695–708.
2. Gebhart, K.A.; Malm, W.C. Examination of Source Regions and Transport Pathways of Organic and Light Absorbing Carbon into Remote Areas of the United States. Preprints of the A&WMA Annual Meeting, Pittsburgh, PA, 1991, Paper No. 91–82.4.
3. Gebhart, K.A.; Malm, W.C. In Proceedings of Aerosols and Atmospheric Optics: Radiative Balance and Visual Air Quality; A&WMA, Pittsburgh, PA, Vol. B, 1994; pp 1125–1142.
4. Campbell, D.; Perley, B.P.; Eldred, R.A. In Proceedings of Visual Air Quality: Aerosols and Global Radiation Balance; A&WMA, Pittsburgh, PA, 1997; pp 281–291.
5. Molenar, J.F.; Dietrich, D.L.; Tree, R.M. In Visibility and Fine Particles; Mathai, C.V., Ed.; A&WMA: Pittsburgh, PA, 1989; pp 374–383.