1. “Spectral properties of Schrödinger operators and scattering theory.”;Agmon,1975
2. Spectral multipliers on Lie groups of polynomial growth
3. “Sharp estimates for the Bochner-Riesz operator of negative order in ${\mathbb R}^2$ .”;Bak,1997
4. “ $L^p-L^q$ estimates off the line of duality.”;Bak,1995
5. “Sharp bounds on heat kernels of higher order uniformly elliptic operators.”;Barbatis,1996