I.U. Bronstein and A.Ya. Kopanskiı̆, Chain recurrence in dynamical systems without uniqueness. Nonlinear Anal. 12 (1988), 147–154.

R. Casagrande, K.A. de Rezende and M.A. Teixeira, Conley index for discontinuous vector fields. Geom Dedicata 136 (2008), 47-56.

C. Conley, Isolated Invariant Sets and the Morse Index, CBMS Regional Conference Series in Mathematics, vol. 38, 1978.

M. Di Bernardo, C.J. Budd, A.R. Champneys and P. Kowalczyk, Piecewise-Smooth Dynamical Systems Theory and Applications, Springer, 2008.

Z. Dzedzej and G. Gabor, On homotopy Conley index for multivalued flows in Hilbert spaces, Topol. Methods Nonlinear Anal. 38 (2011), 187–205.

A.F. Filippov, Differential Equations with Discontinuous Righthand Sides, Kluwer Acad. Pub., 1988.

M.R. Jeffrey, Hidden dynamics in models of discontinuity and switching, Physica D 273 (2014), 34–45.

D. Li, Morse decompositions for general dynamical systems and differential inclusions with applications to control systems, SIAM J. Control Optim. 46 (2007), 35–60.

R. McGehee, Non-Unique Dynamical Systems, Midwest Dynamical Systems Conference, Minneapolis, Minnesota, 3 November, 2018.

R. McGehee and E. Sander, A new proof of the stable manifold theorem, Z. Angew. Math. Phys. 47 (1996), 497–513.

K. Mischaikow, The Conley Index Theory: A Brief Introduction, Banach Center Publ. 47 (1999), 9-19.

K. Mischaikow and M. Mrozek, Conley Index Theory, Handbook of Dynamical Systems II: Towards Applications, (B. Fiedler, ed.), North-Holland, 2002.

M. Mrozek, A cohomological index of Conley type for multi-valued admissible flows, J. Differential Equations 84 (1990), 15–51.

D. Oyama, Lecture Notes on Set-Valued Dynamical Systems, Lecture Notes, 2014.

C. Thieme, Multiflows: a new technique for Filippov systems and differential inclusions, rXiv (2019).

C. Thieme, Conley index theory and the attractor-repeller decomposition for differential inclusions, Arxiv (2020).

P. Welander, A simple heat-salt oscillator. Dynamics of Atmospheres and Oceans 6 (1982), 233–242.