Li, J., Wang, M., De Gaetano, A., Palumbo, P., & Panunzi, S. (2011). The range of time delay and the global stability of the equilibrium for an IVGTT model(). Math Biosci.

Li, Jiaxu, Minghu Wang, Andrea De Gaetano, Pasquale Palumbo, and Simona Panunzi. "The Range of Time Delay and the Global Stability of the Equilibrium for an IVGTT Model()." Math Biosci 2011.

Li, Jiaxu, et al. "The Range of Time Delay and the Global Stability of the Equilibrium for an IVGTT Model()." Math Biosci 2011.