• Finnish-Soviet intercalibration of biological parameters used for monitoring the conditions of the Gulf of FinlandSaava, AstridMeri: report series of the Finnish Institute of Marine Research1980 / p. 78 https://www.ester.ee/record=b1717624*est
• Sanitary-indicator bacterial analysisSaava, AstridMeri: report series of the Finnish Institute of Marine Research1980 / p. 68-78 https://www.ester.ee/record=b1717624*est
• Viable aerobic mesophilic bacteria analysisSaava, AstridMeri: report series of the Finnish Institute of Marine Research1980 / p. 52-67 https://www.ester.ee/record=b1717624*est