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2. Pollination of Douglas-fir with water suspensions of pollen;Allen;For. Sci.,1962
3. Atmospheric circulation in the Canadian high Arctic;Alt;Ann. Glaciol.,1985
4. Flowering and seed setting in conifers. A short review. Cone and seed studies in Norway spruce (Picea abies L. Karst.);Andersson;Stud. For. Suec.,1965
5. A wind tunnel comparison of the rotorod and samplair pollen samplers;Banks;Aerobiologia,1994