TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) SP - 105 LP - 105 DO - 10.48044/joa.1981.7.4.105 VL - 7 IS - 4 A2 - , Y1 - 1981/04/01 UR - http://auf.isa-arbor.com/content/7/4/105.abstract N2 - ER -