![](/img/cover-not-exists.png)
On the Bethe-Sommerfeld conjecture for higher-order elliptic operators
Zhongwei ShenVolume:
326
Language:
english
Pages:
23
DOI:
10.1007/s00208-003-0395-z
Date:
April, 2003
File:
PDF, 227 KB
english, 2003