Spectral theory of differential operators: proceedings of the conference held at the University of Alabama in Birmingham, Birmingham, Alabama, U.S.A., March 26-28, 1981 - Knowles, Ian W.; Lewis, Roger T.; International Conference on Spectral Theory of Differential Operators (1981 : University of Alabama) (Amsterdam: North-Holland, 1981)
Keywords: Differential operators -- Congresses; Spectral theory (Mathematics) -- Congresses