J.  Lellmann, Lenzen, F., and Schnörr, C., ?Optimality Bounds for a Variational Relaxation of the Image Partitioning Problem?, Journal of Mathematical Imaging and Vision, vol. 47, pp. 239-257, 2012.

J.  Lellmann, Lenzen, F., and Schnörr, C., ?Optimality Bounds for a Variational Relaxation of the Image Partitioning Problem?, in Energy Min. Meth. Comp. Vis. Patt. Recogn., 2011, vol. 6819, pp. 132?146.

J.  Lellmann, Lenzen, F., and Schnörr, C., ?Optimality Bounds for a Variational Relaxation of the Image Partitioning Problem?, IPA group, Heidelberg University, 2011.