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Richard Worrell
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Stand Alone
![Damage by the Spruce Bark Beetle in South Norway 1970--80 A Survey, and Factors Affecting Its Occur[r]ence](/_next/image?url=https%3A%2F%2Fstorage.googleapis.com%2Fmenrva_img_storage%2Fcovers%2F9788271693053_733d6168.jpg&w=3840&q=80)