Jondelius, B., B. Lekander, H. H. Eidmann, and E. Edlund. 1973. Some current problems of forest protection. I. The state of forest protection today. II. Certain entomological aspects of forest pests. III. Hylobius abietis. IV. Practical experience in the control of Ips typographus [In Swedish, English summary]. Kongl. Skogs- och Lantbruksakademiens Tidskrift 112:297-320.
Jondelius et al. 1973
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