Wind Finslerian Structures: from Zermelo's Navigation to the Causality of Spacetimes

1. Introduction
2. Wind Finslerian structures
3. Fermat structures for SSTK\xspace splittings
4. The case of causal $K$: Randers-Kropina metrics
5. The case of arbitrary $K$: General wind Riemannian structures
6. Applications to wind Riemannian structures and navigation
7. Fermat's principle and generalized Zermelo navigation problem
8. Further applications
9. Conclusions and further developments
Appendix: List of some symbols and conventions