<style face="normal" font="default" size="100%">Pulp mill effluent and other factors in the winter oxygen balance of the Athabasca River. In : Proceedings of the 20th Annual Aquatic Toxicity Workshop, Quebec City, Quebec, October 17-21, 1993, editors, R. van Coillie, Y. Roy, Y. Bois, Campbell, P. G. C</style>

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