1. H. Amann, Periodic solutions of semilinear parabolic equations, in Nonlinear Analysis. A Collection of Papers in Honor of Erich H. Rothe ( L. Cesari, R. Kannan, H.F. Weinberger, Eds.), Academic Press, New York, 1978, pp. 1–29.
2. H. Amann, Dual semigroups and second order linear elliptic boundary value problems, Israel J. Math. 45 (1983) 225–254.
3. H. Amann, Existence and regularity for semilinear parabolic evolution equations, Annali Scuola Norm. Sup. Pisa Ser. IV, XI (1984) 593–676.
4. H. Amann, Quasilinear evolution equations and parabolic systems, Trans. Amer. Math. Soc. 293 (1986) 191–227.
5. H. Amann, Parabolic evolution equations and nonlinear boundary conditions, J. Diff. Equ. 72 (1988) 201–269.