1. Algebraic Functions;Bliss,1966
2. Global Hypoellipticity and Spectral Theory;Boggiatto,1996
3. Global hypoellipticity and Sobolev estimates for generalized SG-pseudo-differential operators;Camperi;Rend. Semin. Mat. Univ. Politec. Torino,2008
4. Entire extensions and exponential decay for semilinear elliptic equations;Cappiello;J. Anal. Math.,2010
5. The Technique of Pseudodifferential Operators;Cordes,1995