MLA

Li, Xu-Guang, Arben Cela, and Silviu-Iulian Niculescu. Analytic Curve Frequency-sweeping Stability Tests for Systems with Commensurate Delays. Springer International Publishing, 2015.

APA

Li, X., Cela, A., & Niculescu, S. (2015). Analytic Curve Frequency-Sweeping Stability Tests for Systems with Commensurate Delays. Springer International Publishing.

Chicago

Li, Xu-Guang, Arben Cela, and Silviu-Iulian Niculescu. Analytic Curve Frequency-Sweeping Stability Tests for Systems with Commensurate Delays. : Springer International Publishing, 2015.