Mathematical framework for traction force microscopy R. Michel, V. Peschetola, G. Vitale, J. Étienne, A. Duperray, D. Ambrosi, L. Preziosi and C. Verdier ESAIM: Proc., 42 (2013) 61-83 Published online: 09 December 2013 DOI: 10.1051/proc/201342005