6Liu J F,Yang X,Feng X J,et al. The design of combined lifter for harvesting potatoes[C]//The Intermational Agricultural Engineering Conference (IACE2002) ,Southern Yangtze University, Asian Association for Agricultural Engineering(AAAE), 2002, 28(30) :320-323
7Maly P, Hoffmann T, Ch. Furll. Gentle Harvest of Potatoes in Storage Boxes[J]. Agricultural Engineering International: The CIGR E Journal, 2005, (10) :163-165
