1. Sjöström , J. 1990. “Detrimental Substances in Pulp and Paper Production”. 28Turku/Åbo, Finland: Åbo Akademi University. Ph.D. Thesis
2. Thornton , J. 1993. “Dissolved and Colloidal Substances in the Production of Wood‐containing Paper”. 33Turku/Åbo, Finland: Åbo Akademi University. Ph.D. Thesis
3. Sundberg , K. 1995. “Effects of Wood Polysaccharides on Colloidal Wood Resin in Papermaking”. 33Turku/Åbo, Finland: Åbo Akademi University. Ph.D. Thesis
4. Sundberg , A. 1999. “Wood Resin and Polysaccharides in Mechanical Pulps”. 56Turku/Åbo, Finland: Åbo Akademi University. Ph.D. Thesis