1. Cameron, D., A.E. Hamilton, and G.C. Stevens. 1976. A single plant potato harvester. Proceedings of the Fourth International Conference on Mechanization of Field Experiments. Iowa State University, Ames, Iowa.
2. Chase, R.W., N.R. Thompson, R.L. Ledebuhr, C.M. Hansen, and R.B. Kitchen. 1978. Plot harvester for potatoes. Am Potato J 55: (4)235,237.
3. Dijkstra, J. 1976. Some aspects of experimental field mechanization in the Netherlands. Proceedings of the Fourth International Conference on Mechanization of Field Experiments. Iowa State University, Ames, Iowa. 314–320.
4. Misener, G.C., C.D. McLeod, and L.P. McMillan. 1985. Development of a foam padded elevator for a potato harvester. Transactions of the ASAE. 28(6): 1726–1728.
5. Misener, G.C. and L.P. McMillan. 1982. A single-hill potato digger. Am Potato J 59(11):551–553.