1. Quasilinearization and Boundary Value Problems;Bellman,1964
2. “Numerical Methods of Obtaining Solutions of Fixed End Point Problems in the Calculus of Variations,”;Hestenes,1949
3. “On Nonlinear Differential Equations, the Maximum Operation and Monotone Convergence,”;Kalaba;J. of Math. and Mech.,1959
4. “Some Aspects of Quasilinearization,” a chapter in the book Nonlinear Differential Equations and Nonlinear Mechanics;Kalaba,1963
5. “Successive Approximations and Computer Storage Problems in Ordinary Differential Equations,”;Bellman;Comm. of the ACM,1961