1. Orbit determination as a multipoint boundary value problem and quasilinearization;Bellman,1962
2. On the Identification of Systems and the Unscrambling of Data-I: Hidden Periodicities;Bellman,1964
3. Wengert's numerical method for partial derivatives, orbit determination and quasilinearization;Bellman;Commun. Assoc. Computing Machinery,1965
4. Invariant Imbedding and Time-dependent Transport Processes;Bellman,1964
5. A New Derivation of the Integro-differential Equations for Chandrasekhar's X and Y Functions;Bellman,1964