The controllability of nonlinear implicit fractional delay dynamical systems. - Rajagopal Joice Nirmala; Krishnan Balachandran (Int. J. Appl. Math. Comput. Sci., 2017)

Relative controllability of nonlinear fractional delay integrodifferential systems with multiple delays in control. - Rajagopal Joice Nirmala; Krishnan Balachandran (Kybernetika, 2017)