Friedrichs, K. O. (Kurt Otto), 1901- Friedrichs, K. O. (Kurt Otto), 1901-
Lectures on advanced ordinary differential equations,
by K. O. Friedrichs; notes by P. Berg, W. Hirsch, P. Treuenfels.
- London, Nelson, 1967.
- Notes on mathematics and its applications .
At head of title: New York University, Institute of Mathematical Sciences.