RT Journal Article SR Electronic T1 MBC-P Injection of Elms At Colorado State University JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 279 OP 280 DO 10.48044/jauf.1979.068 VO 5 IS 12 A1 Lawrence B. Helburg YR 1979 UL http://auf.isa-arbor.com/content/5/12/279.abstract AB