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Aase, J.K. and Bjorneberg, D.L. and Sojka, R.E. (2001) Zone-subsoiling relationships to bulk density and cone index on a furrow-irrigated soil. Transactions of the ASAE. 44(3):577-583.
Busscher, W.J. and Karlen, D.L. and Sojka, R.E. and Burnham, K.P. (1988) Soil and plant response to three subsoiling implements. Soil Science Society of America Journal. 52:804-809.
Busscher, W.J. and Sojka, R.E. (1987) Enhancement of subsoiling effect on soil strength by conservation tillage. Transaction of the ASAE. 30(4):888-892.
Pikul Jr, J.L. and Aase, J.K. (1999) Wheat response and residual soil properties following subsoiling of a sandy loam in eastern Montana. Soil & Tillage Research. 51:61-70.
Rasmussen, W.W. and Moore, D.P. and Alban, L.A. (1972) Improvement of a Solonetzic (Slick Spot) Soil By Deep Plowing, Subsoiling and Amendments. Soil Science Society of America Proceedings. 36(1):137-142.
Sojka, R.E. and Busscher, W.J. and Gooden, D.T. and Morrison, W.H. (1990) Subsoiling for sunflower production in the Southeast Coastal Plains. Soil Science Society of America Journal. 54:1107-1112.
Sojka, R.E. and Horne, D.J. and Ross, C.W. and Baker, C.J. (1997) Subsoiling and surface tillage effects on soil physical properties and forage oat stand and yield. Soil & Tillage Research. 40:125-144.
Sojka, R.E. and Westermann, D.T. and Brown, M.J. and Meek, B.D. (1993) Zone-subsoiling effects on infiltration, runoff, erosion, and yields of furrow-irrigated potatoes. Soil & Tillage Research. 25:351-368.
Sojka, R.E. and Westermann, D.T. and Kincaid, D.C. and McCann, I.R. and Halderson, J.L. and Thornton, M. (1993) Zone-subsoiling effects on potato yield and grade. American Potato Journal. 70:475-484.
Strausbaugh, C.A. and Windes, J.M. (2006) Influence of subsoiling on direct-seeded cereals in southeastern Idaho. Canadian Journal of Plant Pathology. 28:596-608.
Sojka, R.E. (1995) Subsoiling - Agricultural soil and crop practices. In: McGraw-Hill Yearbook of Science & Technology - 1996. pp. 4-6. McGraw-Hill Inc., New York.
Pikul Jr, J.L. and Aase, J.K. (1997) Water infiltration into a glacial till soil following subsoiling and secondary tillage. pp. 527-530. In: Proceedings 14th Istro Conf. Poland-Pulawy, 1997/07/27-08/01, 1997.
Sojka, R.E. and Kennedy-Ketcheson, E.C. and Brown, M.J. and Westermann, D.T. (1991) Erosion and infiltration of furrow irrigated potato fields as affected by zone subsoiling. pp. 301-315. In: Proc. Intl. Erosion Control Assoc. Erosion Control:A global perspective. USA-FL-Orlando, 1991/02/20-22. Intl Erosion Control Assoc., P.O. Box 4904, Steamboat Springs, CO 80477.