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Ai C, Tsai Y.  2012.  Hybrid active contour–incorporated sign detection algorithm. Journal of Computing in Civil Engineering. 26(1):28-36.
Ai C, Tsai Y.  2015.  Automatic horizontal curve identification and measurement method using gps data. Journal of Transportation Engineering. 141(2):04014078.
Ai C, Tsai Y.  2015.   Critical assessment of an enhanced traffic sign detection method using mobile lidar and ins technologies. Journal of Transportation Engineering. 141(5):04014096.
Ahn K-H, Merwade V, Ojha C.S.P., Palmer RN.  2016.  Quantifying relative uncertainties in the detection and attribution of human-induced climate change on winter streamflow. Journal of Hydrology. 542:304-316.
Ahn K-H, Palmer RN.  2016.  Trend and variability in observed hydrological extremes in the United States. Journal of Hydrologic Engineering. 21(2)
Ahn K-H, Palmer RN.  2016.  Use of a nonstationary copula to predict future bivariate low flow frequency in the Connecticut River Basin. Hydrological Processes. 30(19):3518–3532.
Ahlfeld D. P., Hoque Y.  2008.  Impact of simulation model solver performance on ground water management problems. Groundwater. 46(5):716-726.
Ahlfeld D. P., Sawyer C.S.  1991.  Well location in capture zone design using simulation and optimization techniques. Groundwater. 28(4):507–512.
Ahlfeld D. P., Zafirakou A., Riefler R.G.  1998.  Solution of the groundwater transport management problem by sequential relaxation. Advances in Water Resources. 21(7):591-604.
Ahlfeld D. P., Dripps WR.  2013.  Groundwater Issues. Water: Science, Policy, and Management: Challenges and Opportunities.
Ahlfeld D. P., Barlow PM, Mulligan AE.  2005.  GWM—A Ground–Water Management Process for the U.S. Geological Survey Modular Ground–Water Model (MODFLOW–2000). U.S. Geological Survey Open–File Report 2005–1072. :1-124.
Ahlfeld D. P., Mulvey J.M, Dembo R.S, Zenios S.A.  1987.  Nonlinear programming on generalized networks. ACM Transactions on Mathematical Software. 13(4):350-367.
Ahlfeld D. P., Joaquín A, Tobiason JE, Mas DML.  2003.  Case Study: Impact of Reservoir Stratification on Interflow Travel Time. Journal of Hydraulic Engineering. 129(12):966-975.
Ahlfeld D. P., Hill E.H.  1996.  The sensitivity of remedial strategies to design criteria. Groundwater. 34(2):341-348.
Ahlfeld D. P., Laverty MM.  2011.  Analytical solutions for minimization of energy use for groundwater pumping. Water Resources Research. 47(6):1-9.
Ahlfeld D. P., Islam M.S.  1994.  Estimating the probability of exceeding groundwater quality standards. Journal of the American Water Resources Association. 30(4):623–629.
Ahlfeld D. P., Mulvey J.M, Pinder G.F.  1987.  Combining physical containment with optimal withdrawal for contaminated groundwater remediation. Advances in Water Resources. 10(4):200-204.
Ahlfeld D. P., Pinder G.F.  1992.  A fast and accurate method for solving subsurface contaminant transport problems with a single uncertain parameter. Advances in Water Resources. 15(2):143-150.
Ahlfeld D. P..  2011.  Quantitative Analysis of Groundwater Systems. Groundwater Quantity and Quality Management. :137-158.
Ahlfeld D. P., Dahmani A., Ji W..  1994.  A conceptual model of field behavior of air sparging and its implications for application. Groundwater Monitoring & Remediation. 14(4):132–139.
Ahlfeld D. P., Mulvey J.M, Pinder G.F, Wood P.F.  1988.  Contaminated groundwater remediation design using simulation, optimization, and sensitivity theory: 1. Model development. Water Resources Research. 24(3):431–441.
Ahlfeld D. P., Sprong M.P.  1998.  Presence of nonconvexity in groundwater concentration response functions. Journal of Water Resources Planning and Management. 124(1):8-14.
Ahlfeld D. P., Mulligan AE.  2000.  Optimal Management of Flow in Groundwater Systems. :185.
Ahlfeld D. P., Minihane M.  2004.  Storm flow from first-flush precipitation in stormwater design. Journal of Irrigation and Drainage Engineering. 130(4):269-276.
Ahlfeld D. P., Page R.H, Pinder G.F.  1995.  Optimal ground-water remediation methods applied to a superfund site: from formulation to implementation. Groundwater. 33(1):58–70.
Ahlfeld D. P., Baro-Montes G.  2008.  Solving unconfined groundwater flow management problems with successive linear programming. Journal of Water Resources Planning and Management. 134(5):404-412.
Ahlfeld D. P..  1990.   Two‐stage ground‐water remediation design. Journal of Water Resources Planning and Management. 116(4):517-529.
Ahlfeld D. P..  1998.  Interpretation of the dual program for optimal groundwater hydraulic control. Journal of the American Water Resources Association. 34(1):195–206.
Ahlfeld D. P., Heidara M.  1994.  Applications of optimal hydraulic control to ground‐water systems. Journal of Water Resources Planning and Management. 120(3):350-365.
Ahlfeld D. P..  2004.  Nonlinear response of streamflow to groundwater pumping for a hydrologic streamflow model. Advances in Water Resources. 27(4):349–360.

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