1. Effects of experimental acidification and liming on soil organisms and decomposition in a Scots pine forest;Bååth;Pedobiologia,1980
2. Acidification experiments in conifer forest. 5. Studies on the soil fauna;Hågvar;Acid Precipitation — Effects on Forest and Fish — Project (Norway) Internal Report,1977
3. Considérations sur la conductivité et la salinité des substrats dans la culture des plantes ornamentales;Heungens;Revue de l’Agriculture,1975
4. The influence of salt concentration on the enchytraeid population in pine litter;Heungens;Pedobiologia,1980
5. Nematode population fluctuations in pine litter after treatment with pH changing compounds. Meded. Fac. Landbouwwet;Heungens;Rijksuniv. Gent,1981