Zanon, Mario and Gros, Sebastien and Diehl, Moritz  A Lyapunov function for periodic economic optimizing Model Predictive Control.  In: 52nd Conference on Decision and Control, December 10-13, 2013, Florence, Italy pp. 5107-5112. ISSN 0191-2216. ISBN 978-1-4673-5717-3.      (2013)