1. Some relations between nonexpansive and order preserving mappings;Crandall;Proc. Amer. Math. Soc.,1980
2. S. Gaubert, J. Gunawardena, A non-linear hierarchy for discrete event dynamical systems, in: Proceedings of WODES’98, Cagliari, Italia, 1998.
3. S. Gaubert, J. Gunawardena, Existence of Eigenvectors for Monotone Homogeneous Functions, Hewlett-Packard Technical Report, 1999, HPL–BRIMS–99–08.
4. J. Gunawardena, M. Keane, On the Existence of Cycle Times for Some Nonexpansive Maps, Hewlett-Packard Technical Report, 1995, HPL–BRIMS–95–003.
5. A study of traffic capacity;Greenshields;Proc. Highw. Res. Board,1935