@article{1077315074,
author = {Tamura, Hideo},
title = {Asymptotic formulas with sharp remainder estimates for
eigenvalues of elliptic operators of second order},
journal = {Duke Math. J.},
volume = {49},
number = {1},
year = {1982},
pages = { 87-119},
language = {en},
url = {http://dml.mathdoc.fr/item/1077315074}
}
Tamura, Hideo. Asymptotic formulas with sharp remainder estimates for
eigenvalues of elliptic operators of second order. Duke Math. J., Tome 49 (1982) no. 1, pp. 87-119. http://gdmltest.u-ga.fr/item/1077315074/