1. On stability of motion over a finite time interval (in Russian);Kamenkov;J. Appl. Math. Mech.,1953
2. On stability of motion during a given interval of time (in Russian);Lebedev;J. Appl. Math. Mech.,1954
3. The problem of stability in a finite interval of time (in Russian);Lebedev;J. Appl. Math. Mech.,1954
4. Short time stability in linear time-varying systems;Dorato,1961
5. Finite time stability under perturbing forces and on product spaces;Weiss;IEEE Trans. Automat. Control,1967