1. and , Handbook of Mathematical Functions (Dover, New York, 1970).
2. and , The Theory of Stochastic Processes (John Wiley, New York, 1965).
3. and , Calculus of Variations, (Prentice Hall, Englewood Cliffs, N.J. 1963).
4. Control Strategies for an Idealized Public Transportation System
5. National Bure,1950