1. Sjöström, E.Wood Chemistry: Fundamentals and Applications;Academic Press: New York, 1981; p223.
2. Svedman, M.; Tikka, P.; Kovasin, K.The Role of Sulfur in Displacement Kraft Batch Cooking. InProceedings of the 1995 Tappi Pulping Conference;TAPPI Press: Atlanta, GA, 1995; p241.
3. Vikstrom, B.; Lindblad, M. S.; Parming, A. M.; Tormund, D.Apparent Sulfidity and Sulfide Profiles in the RDH Cooking Process. InProceedings of the 1988 Tappi Pulping Conference;TAPPI Press: Atlanta, GA, 1988; p669.