76. R.P. Gardner, “A Simple Model for the Prediction of GammaRay PulseHeight Spectra for RightCircular Cylindrical Sodium Iodide Crystal Detectors”, Nuclear Instruments and Methods, 138, pp. 28729l (1976). 
95. A. Porelli and R.P. Gardner, “Modification of the Simple Model for the Prediction of PulseHeight Spectra for GammaRay Energies Greater than 1.5 MeV”, Nuclear Instruments and Methods, 159, pp. 177l79 (l979). 
96. L. Wielopolski and R.P. Gardner, “Development of the Detector Response Function Approach for the Library LeastSquares Analysis of EnergyDispersive XRay Fluorescence Spectra”, Advances in XRay Analysis, 22, pp. 317323 (1979).

100. L. Wielopolski and R.P. Gardner, “Development of the Detector Response Function Approach in the LeastSquares Analysis of XRay Fluorescence Spectra”, Nuclear Instruments and Methods, 165, pp. 297306 (1979). 
115. Robin P. Gardner and Joseph M. Doster, “Treatment of the Si(Li) Detector Response as a Probability Density Function”, Nuclear Instruments and Methods, 198, pp. 381390 (1982). 
135. R.P. Gardner, A.M. Yacout, J. Zhang, and K. Verghese, “An Investigation of the Possible Interaction Mechanisms for Si(Li) and Ge Detector Response Functions by Monte Carlo Simulation”, Nuclear Instruments and Methods in Physics Research, A242, 399405 (1986). 
136. Y. Jin, R.P. Gardner and K. Verghese, “A SemiEmpirical Model for the GammaRay Response Function of Germanium Detectors Based on Fundamental Interaction Mechanisms”, Nuclear Instruments and Methods in Physics Research, A242, 416426 (1986). 
150. M.C. Lee, K. Verghese, and R.P. Gardner, “A Semiempirical Detector Response Function for 0.06 to 6.1MeV Gamma Rays”, Transactions of the American Nuclear Society, Vol. 55, 555557 (1987). 
152. M.C. Lee, K. Verghese, and R.P. Gardner, “Extension of the SemiEmpirical Germanium Detector Response Function to Low Energy Gamma Rays”, Nuclear Instruments and Methods in Physics Research, A262, 430438 (1987).

172. T. He, R.P. Gardner, and K. Verghese, “An Improved Si(Li) Detector Response Function”, Nuclear Instruments andMethods in Physics Research A299, pp. 354366 (1990). 
184. G. Griffith, R.P. Gardner, and K. Verghese, “NaI GammaRay Detector Response Functions Using SemiEmpirical Monte Carlo Modelling”, Transactions of the American Nuclear Society, Vol. 65, Supplement No. 1, 1011 (1992).

196. D.E. Peplow, R.P. Gardner, and K. Verghese, “Sodium Iodide Detector Response Functions Using Simplified Monte Carlo Simulation and Principal Components”, Nuclear Geophysics, Vol. 8, No. 3, pp. 243259, (1994).

248. Robin P. Gardner and Avneet Sood, “A Monte Carlo Simulation Approach for Generating NaI Detector Response Functions (DRF’s) that Accounts for Nonlinearity and Variable Flat Continua”, Nuclear Instruments and Methods B, 213 pp. 8799, 2004.

249. Avneet Sood and Robin P. Gardner, “A New Monte Carlo Assisted Approach to Detector Response Functions”, Nuclear Instruments and Methods B, 213 pp. 100104, 2004.

273. Robin P. Gardner, “Detector Response Function Status and Needs” (Invited), Transactions of the American Nuclear Society, Vol. 93, pp. 423424, 2005. 
286. W.A. Metwally, R.P. Gardner, and A. Sood, “Using GmmaGamma Coincidence Measurements to Validate Monte Carlo Generated Detector Response Functions”, Nuclear Instruments and Methods in Physics Research B, 263, pp. 5053, 2007. 
292. Zhijian Wang, Daniel P. Speaker, and Robin P. Gardner, “Two Monte Carlo Approaches for the Generation of Scintillation Detector Response Functions (DRF’s)”, Transactions of the American Nuclear Society, Vol. 98, pp.585586, 2008.
