TY  - BOOK
TI  - Asymptotic distribution of eigenvalues of partial differential operators 
T2  - Translations of mathematical monographs,
SN  - 0821845772 (acid-free paper)
PY  - 1997///
CY  - Providence, R.I.
PB  - American Mathematical Society
N1  - Translated by the authors from an unpublished Russian manuscript
ER  -