Heinz Olf

Zheng, J., Venditti, R. A., & Olf, H. G. (2001). Role of contact angle in the octadecanol agglomeration of electrostatic toners. Journal of Pulp and Paper Science, 27(3), 98–102.

Zheng, J., Venditti, R. A., & Olf, H. G. (1999). Toner Specific Effect in Octadecanol Agglomeration of Electrostatic Toners. Progress in Paper Recycling, 9(1), 30–37.