1. Balakrishnan, A. V.; Introduction to Optimization Theory in a Hilbert Space, Lecture Notes No. 42, Springer-Verlag 1970.
2. Balakrishnan, A. V.: Stochastic Optimization Theory in Hilbert Spaces — I, Journal of Applied Mathematics and Optimization, Vol. 1, No. 2, 1974.
3. Balakrishnan, A. V.: Approximation of Ito integrals by band-limited processes, SIAM Journal on Control, 1974.
4. Bensoussan, A.: Filtrage Optimale des Systemes Lineares, Dunod, Paris, 1970.
5. Balakrishnan, A. V.: Identification of Systems Subject to Random State Disturbance, in Lecture Notes in Computer Science No. 3, Springer-Verlag, 1974.