
 Keeling, S.L. and Geretschläger, R, Using Variational and PDE Methods for the Existence of Origami Models with Given Boundary Conditions, Proceedings of 7OSME, 2018. paper, presentation.
 Fürtinger, S. and Keeling, S.L., Existence of Minimizers for a NonConvex Image Registration Functional with Applications to Edge Set Matching.
 Keeling, S.L., Katsaounis, T.D. and Plexousakis, M., Consistent Discretizations for Vanishing Regularization Solutions to Image Processing Problems. pdf
 Keeling, S.L. and Kunisch, K., Robust L_{1} Approaches to Computing the Geometric Median and Principal and Independent Components, Journal of Mathematical Imaging and Vision, Vol. 40, No. 1, pp. 120145, 2011. pdf
 Reishofer, G., Koschutnig, K., Langkammer, C., Porter, D., Jehna, M., Enzinger, C., Keeling, S.L. and Ebner, F., Timeoptimized highresolution readoutsegmented diffusion tensor imaging. PLoS One, Vol. 8, No. 9, Sep 3, 2013.
 Reishofer, G., Koschutnig, K., Enzinger, C., Ischebeck, A., Keeling, S.L., Stollberger, R. and Ebner, F., Automated macrovessel artifact correction in dynamic susceptibility contrast magnetic resonance imaging using independent component analysis, Magn Reson Med. Vol. 65, No. 3, pp. 848  857, 2011.
 Hofer, M. Keeling, S.L., Reishofer, G., Stollberger, R., Rectal Tumor Registration based on Virtual Templates, ISPA 2011, Dubrovnik, Croatia, Sept. 4  6, 2011.
 Hofer, M., Reishofer, G., Keeling, S.L., Riccabona, M., Aschauer, M. and Stollberger, R., Virtual Template Registration for DCEMRI Renography, ISMRM Annual Meeting, Montreal, Canada, 7.  13. Mai, 2010.
 Fürtinger, S. Keeling, S.L., Plank, G., Prassel, A.J., Registration of Edges Sets for Mapping a Purkinje Fiber Network onto an Endocardium, SFBReport 2010036, Graz, Austria, 2010. pdf
 Kasumba, H. Keeling, S.L., Müller, M., Decay Estimate Addendum to: Revision of the Theory of Tracer Transport and the Convolution Model of DCEMRI, SFBReport 2010022, Graz, Austria, 2010. Submitted to Journal of Mathematical Biology. pdf
 Prassl, A.J., Keeling, S.L., Hofer, E., Plank, G., Reintegration of an endocardial Purkinje system into an anatomically realistic 3D rabbit ventricular geometry, BMT Annual Meeting, 2010.
 Keeling, S.L., Hintermüller, M., Knoll, F., Kraft, D., Laurain, A., A Total Variation Based Approach to Correcting Surface Coil Magnetic Resonance Images, SFBReport 2010016, Graz, Austria, 2010. To appear in Applied Mathematics and Computation. pdf
 Keeling, S.L., Propst, G., Stadler, G, Wackernagel, W., A Mathematical Model of the Deformation of the Eyeball by an Elastic Band, Mathematical Medicine and Biology, Vol. 29, pp. 165183, 2009. Also appeared as SFBReport 2009002, Graz, Austria, 2009. pdf
 Hintermüller, M., Keeling, S.L., Image registration and segmentation based on energy minimization, in Handbook of Optimization in Medicine, Series: Springer Optimization and its Applications, Vol. 26, Pardalos, P.M., Romeijn, H.E. (editors), 2009. pdf
 Keeling, S.L., Kogler, T., Stollberger, R., Deconvolution for DCEMRI Using an Exponential Approximation Basis, Medical Image Analysis, Vol. 13, pp. 8090, 2009. pdf
 Hintermüller, M., Keeling, S.L., Laurain, A., Modulation recovery and image reconstruction in MRI: a structural study by parameterization, SFBReport 2008023, Graz, Austria, 2008. pdf
 Keeling, S.L., Clason, C., Hintermüller, M., Knoll, F., Laurain, A., Von Winckel, G., An Image Space Approach to Cartesian Based Parallel MR Imaging with Total Variation Regularization, SFBReport 2008022, Graz, Austria, 2008. To appear in Medical Image Analysis. pdf
 Keeling, S.L., Generalized Rigid and Generalized Affine Image Registration and Interpolation by Geometric Multigrid, Journal of Mathematical Imaging and Vision, Vol. 29, pp. 163183, 2007. pdf
 Keeling, S.L., Image Similarity Based on Intensity Scaling, Journal of Mathematical Imaging and Vision, Vol. 29, pp. 2134, 2007. pdf
 Keeling, S.L., Haase, G., Geometric Multigrid for HighOrder Regularizations of Early Vision Problems, Applied Mathematics and Computation, Vol. 184, pp. 536556, 2007. pdf
 Reishofer, G., Fazekas, F., Keeling, S.L., Enzinger, C., Payer, F., Simbrunner, J., Stollberger, R., Minimizing Macrovessel Signal in Cerebral Perfusion Imaging using Independent Component Analysis, Magnetic Resonance in Medicine, Vol. 57, No. 2, pp. 278  288, 2007.
 Keeling, S.L., Bammer, R., Stollberger, R., Revision of the Theory of Tracer Transport and the Convolution Model of Dynamic Contrast Enhanced Magnetic Resonance Imaging, Journal of Mathematical Biology, Vol. 55, pp. 389411, 2007. pdf
 Keeling, S.L., Regularization Formulations and Numerical Solutions for Image Processing, Habilitation Summary, accepted by the KarlFranzensUniversität Graz, 2006. pdf
 Keeling, S.L., Medical Image Registration and Interpolation by Optical Flow with Maximal Rigidity, in Mathematical Models for Registration and Applications to Medical Imaging, Scherzer, O. (editor), Springer, Berlin, 2006.
 Burton, R., Plank, G., Schneider, J.E., Grau, V., Ahammer, H. Keeling, S.L., Lee, J., Smith, N., Gavaghan, D., Trayanova, N. and Kohl, P., ThreeDimensional Models of Individual Cardiac HistoAnatomy: Tools and Challenges, Annals of the New York Academy of Sciences, Vol. 1080 No. 4, pp. 301319, October 2006. [Fulltext] [PubMed]
 Keeling, S.L., Ring, W., Medical Image Registration and Interpolation by Optical Flow with Maximal Rigidity, Journal of Mathematical Imaging and Vision, Vol. 23, No. 1, pp. 4765, July 2005. Also appeared as SFB Report No. 248, KarlFranzensUniversity of Graz, Graz, Austria, May, 2003. pdf
 Keeling, S.L., Bammer, R., Kogler, T., Stollberger, R., On the Convolution Model of Dynamic Contrast Enhanced Magnetic Resonance Imaging and Nonparametric Deconvolution Approaches, SFB Report No. 298, KarlFranzensUniversity of Graz, Graz, Austria, April, 2004.
 Reishofer, G., Enzinger, C., Fazekas, F., Keeling, S.L., Stollberger, R., Improved Visibility of Hemodynamic Parameter Maps Using ICA Corrected DCEMRI Time Series, International Society for Magnetic Resonance in Medicine Workshop on Quantitative Cerebral Perfusion Imaging Using MRI: A Technical Perspective, Venice, Italy, March 2123, 2004.
 Keeling, S.L. and Bammer, R., A Variational Approach to Magnetic Resonance Coil Sensitivity Estimation, Applied Mathematics and Computation, Vol. 158, No. 2, pp. 5382, 2004. Also appeared in part as SFB Report No. 207, KarlFranzensUniversity of Graz, Graz, Austria, December 2000. pdf
 Keeling, S.L., Total Variation Based Convex Filters for Medical Imaging, Applied Mathematics and Computation, Vol. 139, pp. 101119, 2003. Also appeared as SFB Report No. 206, KarlFranzensUniversity of Graz, Graz, Austria, December 2000. pdf
 Keeling, S.L. and Stollberger, R., Nonlinear Anisotropic Diffusion Filters for Multiscale Edge Enhancement, Inverse Problems, Vol. 18, pp. 175190, January 2002. Also appeared as SFB Report No. 180, KarlFranzensUniversity of Graz, Graz, Austria, January 2000, and in part at SPIE International Symposium on Medical Imaging, San Diego, CA, February 1218, 2000. pdf
 Bammer, R., M. Auer, Keeling, S.L., M. Augustin, L.A. Stables, R.W. Prokesch, R. Stollberger, M.E. Moseley, F. Fazekas, Diffusion Tensor Imaging Using SingleShot SENSEEPI, Magnetic Resonance in Medicine, Vol. 48, No. 1, pp. 128136, July 2002.
 Bammer, R., Keeling, S.L., Augustin, M., Pruessmann, K.P., Wolf, R., Stollberger, R., Hartung, H., Fazekas, F., Improved DiffusionWeighted SingleShot EchoPlanar Imaging in Stroke using Sensitivity Encoding, Magnetic Resonance in Medicine, Vol. 46, No. 3, pp 548554, September 2001.
 Keeling, S.L. and Bammer, R., Variational Based Coil Sensitivity Estimation, Annual Meeting of the International Society for Magnetic Resonance in Medicine, Glasgow, April 2127, 2001.
 Bammer, R., Keeling, S.L., Auer, M., Pruessmann, K.P., Roeschmann, P., Stollberger, R., Fazekas, F., Diffusion Tensor Imaging using SENSESingleShot EPI, Annual Meeting of the International Society for Magnetic Resonance in Medicine, Glasgow, April 2127, 2001.
 Bammer, R., Keeling, S.L., Augustin, M., Pruessmann, K.P., Leussler, C., Fazekas, F., Improved DiffusionWeighted SingleShot EPI in Stroke using SENSE, Annual Meeting of the International Society for Magnetic Resonance in Medicine, Glasgow, April 2127, 2001.
 Keeling, S.L., Bammer, R., Fazekas, F., and Stollberger, R., Total Variation Denoising for Improved Diffusion Tensor Calculation, Annual Meeting of International Society for Magnetic Resonance in Medicine, Denver, CO, April 17, 2000.
 Bowers, P.L., Dietz, W.E. and Keeling, S.L., Fast Algorithms for Generating Delaunay Interpolation Elements for Domain Decomposition, SFB Report No. 139, KarlFranzensUniversity of Graz, Graz, Austria, September, 1998.
 B.G. Fitzpatrick and S.L. Keeling, On Approximation in Total Variation Penalization for Image Reconstruction, Numerical Functional Analysis and Optimization, Vol. 18, Nos. 9 and 10, pp. 941  958, 1997. pdf
 Keeling, S.L., Tramel, R.W. and Benek, J.A., A Theoretical Framework for Chimera Domain Decomposition, Advances in Flow Simulation Techniquesa Conference Dedicated to the Memory of Professor Joseph L. Steger, UC Davis, May 24, 1997. pdf
 Dietz, W.E., Donegan, T.L., Keeling, S.L. and Thoms, R.D., A Generalization of the Chimera Method to Arbitrary Mesh Structures and Interfaces, Third Symposium on Overset Composite Grid and Solution Technology, Los Alamos, NM, November 1820, 1996.
 Banks, H.T., Keeling, S.L., Silcox, R.J., Active Control of Propeller Induced Noise Fields, CRSC Report No. CRSCTR9416, North Carolina State University, Raleigh, NC, October, 1994, appeared in part in Proceedings of the IEEE TwentySeventh Conference on Decision and Control, Austin, Texas, December 79, 1988. pdf
 Keeling, S.L., A Strategy for the Optimal Design of Nozzle Contours, Paper No. AIAA932720, AIAA 28th Thermophysics Conference, Orlando, FL, July 69, 1993. Best Paper Award. pdf
 Keeling, S.L., On Lipschitz Continuity of Nonlinear Differential Operators, SIAM Journal of Numerical Analysis, Vol. 27, No. 2, pp. 385393, April 1990. pdf
 Keeling, S.L., Galerkin/RungeKutta Discretizations for Semilinear Parabolic Equations, SIAM Journal Numerical Analysis, Vol. 27, No. 2, pp. 394418, April 1990. pdf
 Keeling, S.L., On Implicit RungeKutta Methods Having a Stability Function with Only Real Poles, BIT, Vol. 29, pp. 91109, 1989. pdf
 Keeling, S.L., Galerkin/RungeKutta Discretizations for Parabolic Equations with Time Dependent Coefficients, Mathematics of Computation, Vol. 52, No. 186, pp. 561586, April 1989. pdf

