Global Error Estimates for Ordinary Differential Equations. - Lawrence F. Shampine; Herman A. Watts (ACM Trans. Math. Softw., 1976)

Algorithm 504: GERK: Global Error Estimation For Ordinary Differential Equations [D]. - Lawrence F. Shampine; Herman A. Watts (ACM Trans. Math. Softw., 1976)

Superposition, Orthonormalization, Quasilinearization and Two-Point Boundary - Value Problems. - Melvin R. Scott; Herman A. Watts (Codes for Boundary-Value Problems in Ordinary Differential Equations, 1978)

Initial Value Integrators in BVP Codes. - Herman A. Watts (Codes for Boundary-Value Problems in Ordinary Differential Equations, 1978)

A smooth output interpolation process for BDF codes. - Herman A. Watts (Conference on Numerical Ordinary Differential Equations, 1989)