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I am very grateful to my supervisors Per Milberg and Heidi Paltto for all the help, guidance and good advice offered during this project. I want to thank Karl-Olof Bergman and Lars Westerberg for valuable comments and suggestions. A special thanks to Petter Näslund who helped during the field work in Bråbo. A huge thanks to those involved in initiating, maintaining and monitoring the long-term field trials analysed here and especially to Håkan Fogelfors and Roger Svensson who answered all my questions. This study was supported by Stiftelsen Oscar och Lili Lamms minne.

Responsible for this page: Agneta Johansson
Last updated: 05/06/13