1Hirsch M W.Systems of differential equations that are competitive or cooperative Ⅴ.Convergence in 3-dimensional systems[J].J Diff Eq,1989,80:94-105.
2Hirsch M W.Systems of differential equations that are competitive or cooperative Ⅰ.Limit sets[J].SIAM J Math Anal,1982,13(2):167-179.
3Hirsch M W.Systems of differential equations that are competitive or cooperative Ⅱ.Convergence almost everywhere[J].SIAM J Math Anal,1985,16(3):423-439.
4Hu Si-hu,Huang Li-hong,Yi Tai-shan.Convergence of bounded solutions for a class of systems of delay differential equations[J].Nonliear Analysis,2005,61:543-549.
5Hal L Smith.Monotone dynamical systems(An introduction to the theory of competitive and cooperative systems)[J].American Mathematical Society,1995,41:38-40.
6Goh B S.Stability in models of mutualism[J].American Naturalist,1979,113:261-275.