Stability criterion for discrete-time systems. Ratchagit, K.; Phat, Vu N. — 2010 Journal of Inequalities and Applications [electronic only]
Exponential stability of switched linear systems with time-varying delay. Phat, Vu N.; Pairote, Satiracoo — 2007 Electronic Journal of Differential Equations (EJDE) [electronic only]
Exponential stability criteria of linear non-autonomous systems with multiple delays. Phat, Vu N.; Nam, Phan T. — 2005 Electronic Journal of Differential Equations (EJDE) [electronic only]
Linear uncertain non-autonomous time-delay systems: Stability and stabilizability via Riccati equations. Niamsup, Piyapong; Mukdasai, Kanit; Phat, Vu N. — 2008 Electronic Journal of Differential Equations (EJDE) [electronic only]