Probabilistic automata on infinite words: Decidability and undecidability results
K. Chatterjee, Probabilistic Automata on Infinite Words: Decidability and Undecidability Results, IST Austria, 2009.

Qualitative analysis of partially-observable Markov decision processes
K. Chatterjee, L. Doyen, T.A. Henzinger, Qualitative Analysis of Partially-Observable Markov Decision Processes, IST Austria, 2009.