Variation in Growth of Engelmann Spruce Seedlings Under Selected Temperature EnvironmentsWayne D. Shepperd1981
Initial Growth, Development, and Clonal Dynamics of Regenerated Aspen in the Rocky MountainsWayne D. Shepperd1993
Response of Aspen Root Suckers to Regeneration Methods and Post-harvest ProtectionWayne D. Shepperd1996EN