RT Journal Article SR Electronic T1 Competition for Space in the Urban Infrastructure JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 73 OP 75 DO 10.48044/jauf.1992.016 VO 18 IS 2 A1 John D. Morell YR 1992 UL http://auf.isa-arbor.com/content/18/2/73.abstract