Extrapolation with spline-collocation methods for two-point boundary value problems I: Proposals and justifications. James W. Daniel — 1977 Aequationes mathematicae
Extrapolation with spline-collocation methods for two-point boundary value problems I: Proposals and justifications. (Short Communication). James W. Daniel — 1977 Aequationes mathematicae
Extrapolation with spline-collocation methods for two-point boundary-value problems II: C2-cubics. Andrew J. Martin; James W. Daniel — 1981 Aequationes mathematicae