1. Ambus, P., Kure, L.K., Jensen, E.S., 2000. A 15N pool-dilution approach to measure field gross N transformations following applications of domestic sludge and compost on to soils. Extended abstract. In: Proceedings of the International Symposium on Nuclear Techniques in Integrated Plant Nutrient, Water and Soil Management, Vienna, Austria, 16–20 October 2000, IAEA-SM-363, pp. 27–28.
2. Relationship of soil organic matter dynamics to physical protection and tillage;Balesdent;Soil Till. Res.,2000
3. Broadbent, F.E., 1965. Organic matter. In: Black, C.A. (Ed.), Methods of Soil Analysis. Agron. Monogr. 9. ASA, Madison, WI, pp. 1397–1400.
4. Council Directive 1999/31/EC of 26 April 1999 on the landfill of waste. Official J. L182 (1999) 1–19.
5. Temporal variations in microbial biomass C and cellulolytic enzyme activity in arable soils: effect of organic matter input;Debosz;Appl. Soil Ecol.,1999