Authors: Sieppi, S Sihvonen, M Laine, P

Citation: S. Sieppi et al., Finland forerunner: Pulp and paper industry's environmental information now published for 10 years, PAP PUU, 82(5), 2000, pp. 284-288

Authors: Karessuo, A Sieppi, S Sihvonen, M

Citation: A. Karessuo et al., Environmental protection in the forest industry 1998: Emissions under control, PAP PUU, 81(5), 1999, pp. 346-350