RT Journal Article SR Electronic T1 Mechanical Grape Harvest— Problems and Progress JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 182 OP 187 DO 10.5344/ajev.1957.8.4.182 VO 8 IS 4 A1 A. J. Winkler A1 Lloyd H. Lamouria A1 G. H. Abernathy YR 1957 UL http://www.ajevonline.org/content/8/4/182.abstract AB