An approximation theory for boundary value problems on infinite intervals. - Frank R. de Hoog; Richard Weiss 003 (Computing, 1980)

SOLVEBLOK: A Package for Solving Almost Block Diagonal Linear Systems. - Carl de Boor; Richard Weiss 003 (ACM Trans. Math. Softw., 1980)

Algorithm 546: SOLVEBLOK [F4]. - Carl de Boor; Richard Weiss 003 (ACM Trans. Math. Softw., 1980)