1. Co-existence of species competing for shared resources;Armstrong;Theor. Popul. Biol.,1976
2. Kepler's second law, and topology of Abelian integrals;Arnol’d;Quantum,1987
3. Ordinary Differential Equations;Arnol’d,1984
4. Kinetics of bacterial growth, relationship between population density and specific growth rate of continuous culture;Contois;Gen. Microbiol.,1959
5. Differential Equations with Discontinuous Right Sides;Filippov,1985