On weak relative degree and the McGehee transformation. - Andreas Fuchs; Matthew Varghese; Rangaswamy Mukundan (IEEE Trans. Autom. Control., 1993)

Bifurcation, chaos, and voltage collapse in power systems. - Chin-Woo Tan; Matthew Varghese; Pravin Varaiya; Felix F. Wu (Proc. IEEE, 1995)