1. Attiwill, P. M.: The loss of elements from decomposing litter. Ecology 49, 142–145 (1968).
2. Beck, L.: Aus den Regenwäldern am Amazonas. I. Natur. und Mus. 98, 24–32 (1968).
3. Bertalanffy, L. von: Basic concepts in quantitative biology of metabolism. Helgol. Wiss. Meeresunters. 9, 5–37 (1964).
4. Berthet, P.: Mesure de la consommation d’oxygene des Oribatides (Acariens) de la litiere des forests, pp. 18–31. In: Soil organisms. (Doeksen, J., and J. van der Drift, Eds.). Amsterdam: North-Holland Publ. Co. 1963.
5. Bocock, K. L.: The digestion and assimilation of food by Glomeris, pp. 85–91. In Soil organisms (Doeksen, J., and J. van der Drift, Eds.). Amsterdam: North-Holland Publ. Co. 1963.