Bierstedt, Klaus-Dieter: Functional Analysis, Holomorphy and Approximation Theory (Springer Lecture Notes in Mathematics / The approximation-theoretic localization of Schwartz's approximation property for weighted locally convex function spaces and some examples. In: Functional Analysis, Holomorphy and Approximation Theory (Springer Lecture Notes in Mathematics. Jg.1981. 2009, S. 93-149