Mathematical and Statistical Models and Methods in Reliability : Applications to Medicine, Finance, and Quality Control ; [the contributions in this volume were all presented as invited papers at the Sixth International Conference on Mathematical Methods in Reliability: Theory, Methods, Applications (MMR 2009), which was held at Gubkin Russian State University of Oil and Gas (Gubkin University, Moscow, Russia) during June 22-26, 2009]/ edited by V.V. Rykov, N. Balakrishnan, M.S. Nikulin (2011)