Electronic Journal of Differential Equations,
Vol. 1994(1994), No. 06, pp. 1--10.

Title: Computing eigenvalues of regular Sturm-Liouville problems

Authors: H. I. Dwyer (Univ. of Wisconsin, Platteville, WI, USA)
         A. Zettl (Northern Illinois Univ., DeKalb, IL, USA)

Abstract: An algorithm is presented for computing eigenvalues
of regular self-adjoint Sturm-Liouville problems with matrix 
coefficients and arbitrary coupled boundary conditions.

Submitted April 15, 1994. Published August 23, 1994.
Math Subject Classification: 34B24, 34L15, 34L05.
Key Words: Sturm-Liouville problem; numerical computation of  eigenvalues.

A remark and a FORTRAN code for the main algorithm
of this article have been placed as an appendix. See files
"appendix-tex" and  "Dwyer.fort" in the directory 
EJDE/Volumes/1994/06-Dwyer-Zettl.

See also the article 
H.I. Dwyer; A. Zettl; Eigenvalue Computations for Regular 
Matrix Sturm--Liouville Problems; Eletrc. J. Diff. Eqns. Vol. 1995(1995);