Some factors affecting the crown density of trees in Great Britain based on recent annual surveys of forest condition
Innes, J. L. (1993). Some factors affecting the crown density of trees in Great Britain based on recent annual surveys of forest condition. In R. F. Huettl & D. Mueller-Dombois (Eds.), Forest decline in the Atlantic and Pacific region (pp. 40-53). https://doi.org/10.1007/978-3-642-76995-5_3