A KAM theorem for infinite-dimensional discrete systems. Perfetti, Paolo (2003) Mathematical Physics Electronic Journal [electronic only]
A KAM-theorem for some nonlinear partial differential equations Jürgen Pöschel (1996) Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
A note on the reducibility of linear differential equations with quasiperiodic coefficients. Yuan, Xiaoping, Nunes, Ana (2003) International Journal of Mathematics and Mathematical Sciences
Almost localization and almost reducibility Artur Avila, Svetlana Jitomirskaya (2010) Journal of the European Mathematical Society