Stability criteria of linear neutral systems with a single delay. - D. Q. Cao; Ping He (Appl. Math. Comput., 2004)

Algebraic stability criteria of linear neutral systems with multiple time delays. - Ping He; D. Q. Cao (Appl. Math. Comput., 2004)

Sufficient conditions for stability of linear neutral systems with a single delay. - D. Q. Cao; Ping He (Appl. Math. Lett., 2004)

Simple algebraic criteria for stability of neutral delay-differential systems. - D. Q. Cao; Ping He; Y. M. Ge (J. Frankl. Inst., 2005)