H. Haapala

发表

The use of SEM/EDX for studying the distribution of air pollutants in the surroundings of the emission source.

H. Haapala, 1998, Environmental pollution.

Heavy metal solubility in podzolic soils exposed to the alkalizing effect of air pollutants.

N. Goltsova, M. Lodenius, H. Haapala, 2001, Environmental pollution.

Studies on the Activity of Beta‐Analyses of the Chloroplasts of Stellaria media during Prolonged Illumination

H. Haapala, 1969 .

Photosynthesis and starch metabolism of chloroplasts during prolonged illumination

H. Haapala, 1969, Planta.

The effects of simultaneous large acidic and alkaline airborne pollutants on forest soil.

N. Goltsova, M. Lodenius, H. Haapala, 1996, Environmental pollution.

Ecological condition of forests around the eastern part of the Gulf of Finland.

N. Goltsova, S. Huttunen, J. Kouki, 1996, Environmental pollution.

Accumulation of aluminum inHypogymnia physodes in the surroundings of a finnish sulphite-cellulose factory

H. Haapala, S. Nieminen, P. Nuorteva, 1995 .

The Effect of 6‐Benzylaminopurine on the Starch Metabolism of Stellaria media

H. Haapala, Juhani H. Häggman, 1971 .

Exploring Machine Learning Methods to Automatically Identify Students in Need of Assistance

Raymond Lister, Arto Vihavainen, Alireza Ahadi, 2015, ICER.

THE SURROUNDINGS OF A FINNISH SULPHITE-CELLULO SE FACTORY

H. Haapala, S. Nieminen, P. Nuorteva, 1995 .