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- Johann, M. 1984. Zur Frage der Anlockung des Buchdruckers (Ips typographus L.) mit Fangbaumen oder Fallen. Unpublished dissertation, Forstl. Fakultat, Univ. Gottingen.
- Bombosch, S., and M. Johann. 1985. Notes on the host selection of Ips typographus. Pages 43-51 in L. Safranyik, The role of the host in the population dynamics of forest insects. IUFRO conference proceedings, Canada Department of the Environment, Canadian Forestry Service and United States Department of Agriculture, Forest Service, Banff, Alberta, Canada, September 1983. 240 p.
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