1. C. Corduneanu, Almost Periodic Functions (Interscience Publishers, New York, 1968)
2. C. Corduneanu, Integral Equations and Applications (Cambridge University Press, New York, 2008)
3. C. Corduneanu, Almost Periodic Oscillations and Waves (Springer, New York, 2009)
4. Lecture Notes in Mathematics;AM Fink,1974
5. J.M.T. Thompson, H.B. Stewart, Nonlinear Dynamics and Chaos (Wiley, Chichester, 2002)