ISBN 3540071504 books & textbook
Spectral Theory and Differential Equations: Proceedings of the Symposium Held at Dundee, Scotland, July 1-19, 1974 (Lecture Notes in Mathematics, 448)
Springer /1975-04-14 Paperback / 340 Pages
isbn-10: 3540071504 / isbn-13: 9783540071501
