1. Alexander, V. 1974. A synthesis of the IBP Tundra Biome circumpolar study of nitrogen fixation, pp. 109–121 in A.J. Holding et al. eds. Soil Organisms and Decomposition in Tundra. Tundra Biome Steering Committee, Stockholm, Sweden. 398 pp.
2. Ecological Studies;V Alexander,1978
3. Barsdate, R.J. and V. Alexander. 1975. The nitrogen balance of arctic tundra: pathways, rates and environmental implications./Environ. Qual. 4: 111–117.
4. Billington, M.M. 1981. Nitrogen fixation in a black spruce (Picea mariana [Mill.] B.S.P.) forest in interior Alaska. M.S. Thesis, University of Alaska, Fairbanks, AK. 91 pp.
5. Dyrness, C.T., M.J. Foote, and D. Grigal. 1975. Vegetation composition and structure, pp. 41–53 in The Structure and Function of a Black Spruce (Picea mariana [Mill.] B S P.) Forest in Relation to Other Fire Affected Taiga Ecosystems. A continuation proposal submitted to the National Science Foundation, University of Alaska, Fairbanks, AK. 280 pp.