1. Amann, H.: Periodic solutions of semilinear parabolic equations. In: Nonlinear analysis: a collection of papers in honour of Erich H. Rothe, 1?29. New York: Academic Press 1978
2. Amann, H.: Dual semigroups and second order linear elliptic boundary value problems. Isr. J. Math.45, 225?254 (1983)
3. Amann, H.: Existence and regularity for semilinear parabolic evolutions equations. Ann. Sc. Norm. Super. Pisa Ser. IV,XI, 593?676 (1984)
4. Amann, H.: Global existence for semilinear parabolic systems. J. Reine Angew. Math.366, 47?84 (1985)
5. Amann, H.: Semigroups and nonlinear evolutions equations. Linear Algebra Appl.84, 3?32 (1986)