T.L. White, G.R. Hodge, M.L. Duryea and A.J. Long. 1993. Genetic variation in first year slash pine shoot components and their relationship to mature field performance. Long, A.J. and D.M. Flinchum. Slash pine response to spot applications of hexazinone pellets for release from oak competition. Long, A.J. 1991.
Proper planting improves performance.
J.A. Bernert and A.J. Long. Spectral reflectance patterns of key vegetation types in the Cascade Mountains of Oregon. Soc. for Photogrammetry and Remote Sensing, Anchorage, Alaska. Ritchie, G. and A.J. Long. Field performance of micropropagated Douglas-fir.