Richard R. Underwood

The block Lanczos method for computing eigenvalues

Gene H. Golub, Richard R. Underwood, G. Golub, 2007, Milestones in Matrix Computation.

Stationary values of the ratio of quadratic forms subject to linear constraints

Richard R. Underwood, G. Golub, 1969 .

An iterative block Lanczos method for the solution of large sparse symmetric eigenproblems

Richard R. Underwood, 1975 .

The Lanczos algorithm for the symmetric Ax = $\lambda$Bx problem.

Gene H. Golub, James Hardy Wilkinson, J. H. Wilkinson, 1972 .