Melvin R. Scott, H. A. Watts Superposition, Orthonormalization, Quasilinearization and Two-Point Boundary - Value Problems. [Citation Graph (0, 0)][DBLP] Codes for Boundary-Value Problems in Ordinary Differential Equations, 1978, pp:109-121 [Conf]
H. A. Watts Initial Value Integrators in BVP Codes. [Citation Graph (0, 0)][DBLP] Codes for Boundary-Value Problems in Ordinary Differential Equations, 1978, pp:19-39 [Conf]