1. Dickey, L.A. Soliton Equations and Hamiltonian Systems, Advanced Series in Math. Physics, World Scientific, Hackensack, NJ, 2003.
2. Gel’fand, I. M., and Dickey, L. A. Asymptotic behaviour of the resolvent of Sturm-Liouville equations and the algebra of the Korteweg-de Vries equations, Usp. Mat. Nauk 30 (1975), 67–100; Russ. Math. Surv. 30 (1975), 77–113.
3. Gel’fand, I. M., and Dickey, L. A. A Lie algebra structure in the formal variational calculus, Funktsional. Anal. Prilozhen. 10 (1976), 18–25 (also in English translation).
4. Gel’fand, I. M., and Dickey, L. A. Resolvents and Hamiltonian systems, Funktsional. Anal. Prilozhen. 11 (1977), 11–27 (also in English translation).
5. Kuperschmidt, B. A. Noncommutative Mathematics of Lagrangian, Hamiltonian, and Integrable Systems, Math. Surveys and Monographs, Amer. Math. Soc. Providence R. I. 2000.