1. Bounds for the fundamental solution of a parabolic equation
2. A. Bensoussan and J. Frehse,Regularity of Solutions of Systems of Partial Differential Equations and Applications. Springer Verlag (to be published).
3. A. Bensoussan and J. Frehse, Ergodic Bellman systems for stochastic games, inDifferential equations, dynamical systems, and control science. Dekker, New York (1994) 411-421.