1. Functional Data Analysis;Ramsay,2005
2. Nonparametric Functional Data Analysis: Theory and Practice;Ferraty,2006
3. Inference for Functional Data with Applications;Horváth,2012
4. Linear Processes in Function Spaces: Theory and Applications;Bosq,2000
5. Theoretical Foundations of Functional Data Analysis, with an Introduction to Linear Operators;Hsing,2015