K. Fernando

On a fundamental property of the cross- Gramian matrix

H. Nicholson, K. Fernando, H. Nicholson, 1984 .

On the stability of two-dimensional state-space systems: A special case

H. Nicholson, K. Fernando, 1984 .

On the structure of balanced and other principal representations of SISO systems

H. Nicholson, K. Fernando, H. Nicholson, 1983 .