PT - JOURNAL ARTICLE ED - , TI - Abstracts AID - 10.48044/joa.1982.8.9.249 DP - 1982 Sep 01 TA - Arboriculture & Urban Forestry (AUF) PG - 249--249 VI - 8 IP - 9 4099 - http://auf.isa-arbor.com/content/8/9/249.short 4100 - http://auf.isa-arbor.com/content/8/9/249.full