1. A.A. Andronov and L.S. Pontryagin, “Structurally stable systems,” DOKL. AN SSSR, vol. 14, no. 5, 1937.
2. A.A. Andronov, A.V. Vitt and S.E. Khaikin, Theory of Oscillations [in Russian]. ONTI, 1937. (According to [C. 3] the name of A.V. Vitt did not appear in 1937 edition). Two English editions of this work appeared as follows. (i) under A.A. Andronow and C.E. Chai-kin, Theory of Oscillations. Princeton, NJ: Princeton Univ. Press, 1949. [Translated by N. Goldowskaja, edited by S. Lefschetz.] (ii) under A.A. Andronov, A.A. Vitt and S.E. Khaikin, Theory of Oscillators. Oxford: Pergammon Press (and Addison-Wesley in U.S.A.), 1966. [Translated by F. Immirzi, edited and abridged by W. Fishwick.]
3. H. Bateman, “The control of an elastic fluid,” Bulletin of the American Mathematical Society, vol. 51, pp. 601–646, 1945. [This important paper detailing many references on early use of different governors (prior to 1943), provides a fascinating and invaluable account of control theory based upon linear equations with small perturbation. Also appeared in [4], pp. 18–64.]
4. R. Bellman and R. Kalaba, Eds., Selected Papers on Mathematical Trends in Control Theory. New York: Dover, 1964. [This entry, is suggested by Professor TJ. Higgins, which provides a set of 13 pioneering reprints by such prominent contributors as: J.C. Maxwell, H. Bateman, R. Bellman, R. Kalaba, A. Hurwitz, H. Nyquist, H.W. Bode, B. van der Pol, N. Minorsky, L.A. Zadeh, J.R. Raga77ini, J.P. LaSalle, V. Boltyanskii, R. Gamkrelidze, and L. Pontryagin; that establish the very foundation of modem control theory. This author acknowledges that reading these papers was a crash course in humility for him.]
5. H.W. Bode, Network Analysis and Feedback Amplifier Design. New York: Van Nostrand, 1945.