Aboveground dry matter partitioning, size variation, and competitive processes within second-growth black spruce stands. 1993. Newton, P.F.; Jolliffe, P.A. Canadian Journal of Forest Research 23: 1917-1929.
Assessing processes of intraspecific competition with spatially heterogeneous black spruce stands. 1998. Newton, P.F.; Jolliffe, P.A. Canadian Journal of Forest Research 28: 259-275.
Temporal size-dependent growth responses with density-stressed black spruce stands: Competition processes and budworm effects. 1998. Newton, P.F.; Jolliffe, P.A. Forest Ecology and Management 111: 1013.