The Use of Forth Language in Process Control. - Syed I. Ahson; Surrinder S. Lamba (Comput. Lang., 1985)

Variable Structure Control Design for Large-Scale Systems. - H. Khurana; Syed I. Ahson; Surrinder S. Lamba (IEEE Trans. Syst. Man Cybern., 1986)

Model Simplification: Frequency-Domain Approach. - Surrinder S. Lamba (Concise Encyclopedia of Modelling & Simulation, 1992)