H. Dym and H.P. McKean books & textbook
Fourier series and integrals (Probability and mathematical statistics)
Academic Press /1972-01-01 Hardcover / 295 Pages
isbn-10: 0122264509 / isbn-13: 9780122264504
Gaussian Processes, Function Theory, and the Inverse Spectral Problem (Dover Books on Mathematics)
Dover Publications /2008-02-29 Paperback / 352 Pages
isbn-10: 048646279X / isbn-13: 9780486462790