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57,"Pastor and Bockheim","1981","Pastor and Bockheim (1981)","Pastor, J. and J.G. Bockheim. 1981. Biomass and production of an aspen-mixed hardwood-spodosol ecosystem in northern Wisconsin. Canadian Journal of Forest Research 11: 132-138."
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63,"Stump and Binkley","1993","Stump and Binkley (1993)","Stump, L. and D. Binkley. 1993. Relationships between litter quality and nitrogen availability in Rocky Mountain forests. Canadian Journal of Forest Research 23: 492-502."
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67,"Vogt et al. ","1982","Vogt et al. (1982)","Vogt, K., C. Grier, C.E. Meier and R.L. Edmonds. 1982. Mycorrhizal role in net primary production and nutrient cycling in Abies amabilis ecosystems in western Washington. Ecology 63: 370-380."
69,"Zavitkovski and Stevens","1972","Zavitkovski and Stevens (1972)","Zavitkovski, J. and R.D. Stevens. 1972. Primary productivity of red alder ecosystems. Ecology 53: 235-242."
72,"Bartos and Johnston","1978","Bartos and Johnston (1978)","Bartos, D.L. and R.S. Johnston. 1978.  Biomass and nutrient content of quaking aspen at two sites in the western United States. Forest Science 242: 273-280."
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74,"Fogel and Cromack","1977","Fogel and Cromack (1977)","Fogel R. and K. Cromack, Jr. 1977. Effect of habitat and substrate quality on Douglas fir litter decomposition in western Oregon. Canadian Journal of Botany 55: 1632-1640."
75,"Gower et al.","1987","Gower et al. (1987)","Gower, S., C. Grier, D.J. Vogt and K.A. Vogt. 1987. Allometric relations of deciduous Larix occidentalis and evergreen conifers Pinus contorta and Pseudotsuga menziesii of the Cascade Mountains in central Washington. Canadian Journal of Forest Research 17: 630-634."
76,"Harmon et al.","1990","Harmon et al. (1990)","Harmon, M.E., G.A. Baker, G. Spycher and S.E. Greene. 1990. Leaf-litter decomposition in the Picea/Tsuga forests of Olympic National Park, Washington, U.S.A. Forest Ecology and Management 31: 55-66."
77,"Killingbeck et al.","1990","Killingbeck et al. (1990)","Killingbeck, K.T., J.D. May and S. Nyman. 1990. Foliar senescence in an aspen Populus tremuloides clone: the response of element resrption to interramet variation and timing of abscission. Canadian Journal of Forest Research 20: 1156-1164."
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79,"Schoettle","1990","Schoettle (1990)","Schoettle, A.W. 1990. The interaction between leaf longevity and shoot growth and foliar biomass per shoot in Pinus contorta at two elevations. Tree Physiology 7: 209-214."
80,"Schoettle and Smith","1991","Schoettle and Smith (1991)","Schoettle, A.W. and W.K. Smith. 1991. Interrelation between shoot characteristics and solar irradiance in the crown of Pinus contorta ssp. latifolia. Tree Physiology 9: 245-254."
81,"Taylor and Parkinson","1988","Taylor and Parkinson (1988)","Taylor, B. and D. Parkinson. 1988. Annual differences in quality of leaf litter of aspen Populus tremuloides affecting rates of decomposition. Canadian Journal of Botany 66: 1940-1947."
85,"Panshin and de Zeeuw","1980","Panshin and de Zeeuw (1980)","Panshin, A.J. and C. de Zeeuw. 1980. Textbook of Wood Technology. 4th ed., McGraw-Hill, New York."