Bacteriological purification of the Finnish River Kymi von Niemi, J.S, Heitto, L, Niemi, R.M, Anttila-Huhtinen, M, Malin, V

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Fecal contamination of Finnish fresh waters in 1962-1984 von Poikolainen, M.L, Niemi, J.S, Niemi, R.M, Malin, V

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Comparison of statistical phosphorus-retention models von Frisk, T., Niemi, J.S., Kinnunen, K.A.I.

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Kinetics of the regeneration of a cracking catalyst derived from TPO measurements von Kanervo, J.M., Krause, A.O.I., Aittamaa, J.R., Hagelberg, P.H., Lipiäinen, K.J.T., Eilos, I.H., Hiltunen, J.S., Niemi, V.M.

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Direct Electron-Positron Pair Production by 200-GeV Negative Pions von Fortney, L. R., Goshaw, A. T., Lamsa, J. W., Loos, J. S., Niemi, D. A., Robertson, W. J., Walker, W. D.

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