Controllability of nonlinear delay systems with delay depending on state variable Krishnan Balachandran; D. Somasundaram — 1986 Kybernetika
Bang-bang control of a second-order non-linear stable plant with fourth- order nonlinearity Krishnan Balachandran; D. Somasundaram — 1983 Kybernetika
Relative controllability of nonlinear systems with time varying delays in control Krishnan Balachandran; D. Somasundaram — 1985 Kybernetika
Time optimal control of a second order nonlinear plant Krishnan Balachandran; D. Somasundaram — 1984 Kybernetika
Controllability of a class of nonlinear systems with distributed delays in control Krishnan Balachandran; D. Somasundaram — 1983 Kybernetika