1. Sensitivity Analysis and Invariant Imbedding;Bellman,1964
2. Sensitivity Analysis and Lyapunov Stability;Gumovski,1964
3. Sensitivity Analysis of Dynamic Systems;Tomović,1964
4. On the Differentiation of the Solution of Differential Equations Containing Small Paramaters;Vassileva;Proc. Acad. Sci. USSR,1948
5. Sensitivity and Dynamic Accuray of Control Systems;Bikhovsky,1964