Thiel, J. 1999. The development of bark beetles in logging residues in spruce stands. Pages 236-237 In B. Forster, M. Knízek, and W. Grodzki (eds.), Methodology of forest insect and disease survey in Central Europe. Proceedings of the Second Workshop of the IUFRO Working Party 7.03.10, April 20-23, 1999, Sion-Châteauneuf, Switzerland. Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland.