Wiehler, K, Heers, J, Schnörr, C, Stiehl, H ?S and Grigat, R ?R (2001). A 1D analog VLSI implementation for non-linear real-time signal preprocessing. Real?Time Imaging. 7 127?142

 Weickert, J, Heers, J, Schnörr, C, Zuiderveld, K ?J, Scherzer, O and Stiehl, H ?S (2001). Fast parallel algorithms for a broad class of nonlinear variational diffusion approaches. Real?Time Imaging. 7 31?45

 Heers, J, Schnörr, C and Stiehl, H S (2001). Globally?Convergent Iterative Numerical Schemes for Non?Linear Variational Image Smoothing and Segmentation on a Multi?Processor Machine. IEEE Trans. Image Proc. 10 852?864

 Heers, J, Schnörr, C and Stiehl, H S (1999). Investigating A Class Of Iterative Schemes And Their Parallel Implementation For Nonlinear Variational Image Smoothing And Segmentation. Comp. Sci. Dept., AB KOGS, University of Hamburg, Germany

 Heers, J, Schnörr, C and Stiehl, H S (1998). A class of parallel algorithms for nonlinear variational image segmentation. Proc. Noblesse Workshop on Non?Linear Model Based Image Analysis (NMBIA'98). Glasgow, Scotland

 Wiehler, K, Grigat, R ?R, Heers, J, Schnörr, C and Stiehl, H S (1998). Dynamic Circular Cellular Networks for Adaptive Smoothing of Multi?Dimensional Signals. Proc. 5th IEEE Int. Workshop on Cellular Neural Networks and their Applications. London

 Heers, J, Schnörr, C and Stiehl, H ?S (1998). Investigation of Parallel and Globally Convergent Iterative Schemes for Nonlinear Variational Image Smoothing and Segmentation. Proc. IEEE Int. Conf. Image Proc. Chicago

 Heers, J, Schnörr, C and Stiehl, H ?S (1998). Parallele und global konvergente iterative Minimierung nichtlinearer Variationsansätze zur adaptiven Glättung und Segmentation von Bildern. Mustererkennung 1998. Springer, Heidelberg

 Wiehler, K, Grigat, R ?R, Heers, J, Schnörr, C and Stiehl, H ?S (1998). Real?Time Adaptive Smoothing with a 1D Nonlinear Relaxation Network in Analogue VLSI Technology. Mustererkennung 1998. Springer, Heidelberg