![](/img/cover-not-exists.png)
On Some Isospectral Second Order Differential Operators
Mark Kac and Pierre Van MoerbekeVolume:
71
Language:
english
Journal:
Proceedings of the National Academy of Sciences of the United States of America
DOI:
10.2307/63422
Date:
June, 1974
File:
PDF, 215 KB
english, 1974