TY  - DATA
AU  - W.N. Everitt
TI  - Spectral Theory and Differential Equations
T2  - Lecture Notes in Mathematics
SN  - 9783540374442
PY  - 1975///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0067078
ER  -