Degroot DJ, Germaine JT, Gedney R..  1991.  An automated electropneumatic control system for direct simple shear testing. Geotechnical Testing Journal. 14(4):339-348.

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Lutenegger AJ, Degroot DJ.  1992.  Measurement of hydraulic conductivity in clay using push-in piezometers. Current Practices in Ground Water and Vadose Zone Investigations. 1118:362-374.

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Degroot DJ, Lutenegger AJ.  1993.  Discussion on “Characteristics of a Bentonite Slurry as a Sealant” by Tuncer B. Edil and Ahmed S. H. Muhanna. Geotechnical Testing Journal. 16(1):135-137.

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Degroot DJ, Baecher GB.  1993.  Estimating autocovariance of in‐situ soil properties. Journal of Geotechnical Engineering. 119(1):147-166.

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Degroot DJ, Germaine JT, Ladd CC.  1993.  The multidirectional direct simple shear apparatus. Geotechnical Testing Journal. 16(6):283-295.

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Degroot DJ, Baecher GB.  1994.  Closure to “Estimating autocovariance of in situ soil properties”. Journal of Geotechnical Engineering. 120(8):1455-1457.

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Degroot DJ, Lutenegger AJ.  1994.  A comparison between field and laboratory measurements of hydraulic conductivity in a varved clay. Hydraulic Conductivity and Waste Contaminant Transport in Soil. :300-317.

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Degroot DJ, Germaine JT, Ladd CC.  1994.  Effect of nonuniform stresses on measured DSS stress‐strain behavior. Journal of Geotechnical Engineering. 120(5):892-912.

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Lutenegger AJ, Degroot DJ.  1994.  Hydraulic conductivity of borehole sealants. Hydraulic Conductivity and Waste Contaminant Transport in Soil. 1142:439-460.

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Whittle AJ, Degroot DJ, Ladd CC, Seah T.H..  1994.  Model prediction of anisotropic behavior of Boston blue clay. Journal of Geotechnical Engineering. 120(1):199-224.

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Sheahan TC, Degroot DJ, Germaine JT.  1994.  Using Device Specific Data Acquisition for Automated Laboratory Testing. Transportation Research Record No. 1432. :9-17.

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Ostendorf DW, Degroot DJ, Pollock SJ, Gagnon P.J..  1995.  Aerobic acetate degradation near the capillary fringe of roadside soil: Field simulations from soil microcosms. Journal of Environmental Quality. 24:334-342.

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Degroot DJ, Germaine JT, Ladd CC.  1995.  Closure to “Effect of Nonuniform Stresses on Measured DSS Stress‐Strain Behavior”. Journal of Geotechnical Engineering. 121(10):743-745.

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Degroot DJ, Sheahan TC.  1995.  Laboratory methods for determining engineering properties of overconsolidated clays. Transportation Research Record. (1479):17-25.

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Lutenegger AJ, Degroot DJ.  1995.  Techniques for sealing cone penetrometer holes. Canadian Geotechnical Journal. 32(5):880-891.

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Degroot DJ, Lutenegger AJ, Panton J.G., Ostendorf DW, Pollock S.J..  1996.  Methods of determining in situ oxygen profiles in the vadose zone of granular soils. Sampling Environmental Media, American Society for Testing and Materials. Special Technical Publication No. 1282:271-288.

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Degroot DJ, Ladd C.C., Germaine JT.  1996.  Undrained multidirectional direct simple shear behavior of cohesive soil. Journal of Geotechnical Engineering. 122(2):91-98.

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Ostendorf DW, Degroot DJ, Pollock S.J., Long L.J..  1997.  Aerobic degradation potential assessment from oxygen and carbon dioxide soil gas concentrations in roadside soil. Journal of Environmental Quality. 26(2):445-453.

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Sheahan TC, Degroot DJ.  1997.  Laboratory determination of coastal sediment mechanical properties. Marine Georesources and Geotechnology. 15(3):231-252.

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Shelburne W.M., Degroot DJ.  1998.  Use of recycled materials in highway construction. Journal of Civil Engineering Practice. 13(1):5-16.

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Mitchell T.J., Degroot DJ, Lutenegger AJ, Ernst H., McGrath V..  1999.  Comparison of CPTU and laboratory soil parameters for bridge foundation design on fine grained soils: A case study in Massachusetts. Transportation Research Record: Transportation Research Board. 1675:24-31.

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Sheahan TC, Degroot DJ, Mitchell TJ.  1999.  State of the Art: Automated laboratory stress-strain-strength testing of soils. Nondestructive and Automated Testing for Soil and Rock Properties, American Society for Testing and Materials Special Technical Publication No. 1350. :203-230.

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MacGregor J, Highter WH, Degroot DJ.  1999.  Structural numbers for reclaimed asphalt pavement base and subbase course mixes. Transportation Research Record: Transportation Research Board. 1687

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Lutenegger AJ, Degroot DJ.  2000.  Field Techniques for Sampling and Measurement of Soil Gas Constituents at Contaminated Sites. Remediation Engineering of Contaminated Soils. :657-692.

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Nagaraj TS, Degroot DJ.  2004.  Discussion: Determination of liquid limit from equilibrium sediment volume. Géotechnique. 54(9):611-613.

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Ostendorf DW, Degroot DJ, Shelburne WM, Mitchell TJ.  2004.  Hydraulic head in a clayey sand till over multiple timescales. Canadian Geotechnical Journal. 41(1):89-105.

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Sheahan TC, Degroot DJ, Fu Q., Ryan R..  2004.  Use of 'Zero Controlled Gradient' tests to determine EOP compression behavior. Geotechnical Testing Journal. 27(3):1-8.

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Degroot DJ, Lutenegger AJ.  2005.  Characterization by sampling and in-situ testing-Connecticut Valley varved clay. Studia Geotechnica et Mechanica. 27(3/4):107-120.

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Ostendorf DW, Degroot DJ, Dunaj PJ, Jakubowski J..  2005.  A closed form slug test theory for high permeability aquifers. Groundwater. 43(1):87-101.

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Degroot DJ, Poirier SE, Landon MM.  2005.  Sample disturbance—soft clays. Studia Geotechnica et Mechanica. XXVII(3-4):107-120.

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