1. Camilli, F., Ley, O., Loreti, P., Nguyen, V.D.: Large time behavior of weakly coupled systems of first-order Hamilton–Jacobi equations. NoDEA Nonlinear Differ. Equ. Appl. 19(6), 719–749 (2012)
2. Mitake, H., Tran, H.V.: Remarks on the large-time behavior of viscosity solutions of quasi-monotone weakly coupled systems of Hamilton–Jacobi equations. Asymptot. Anal. 77, 43–70 (2012)
3. Davis, H.T.: Introduction to Nonlinear Differential and Integral Equations. Dover Publications Inc, New York (1962)
4. Fleming, W.H., Mete Soner, H.: Controlled Markov process and viscosity solutions. Springer, New York (1993)
5. Protter, M.H., Weinberger, H.F.: Maximum Principles in Differential Equations. Prentice-Hall Inc, Englewood Cliffs (1967)