Spectral theory and differential equations : proceedings of the symposium held at Dundee, Scotland, 1-19 July, 1974 /
ed. by W. N. Everitt.
- Berlin ; New York : Springer-Verlag, 1975.
- XII, 321 s. ; 24 cm.
- Lecture Notes in Mathematics, 448 0075-8434 ; .
- Lecture Notes in Mathematics 448 .