- Benito Hernández-Bermejo, Víctor Fairén, “Algebraic decoupling of variables for systems of ODEs of quasipolynomial form”, Physics Letters A, 253, № 1-2, 1999,
50 
- E. V. Evdokimov, A. V. Shapovalov, “Janes approach to the dynamics of Darwin systems”, Russ Phys J, 43, № 6, 2000,
488