- O. I. Mokhov, “Compatible Nonlocal Poisson Brackets of Hydrodynamic Type and Integrable Hierarchies Related to Them”, Theoretical and Mathematical Physics, 132, № 1, 2002, 942

- O. I. Mokhov, “The Liouville Canonical Form for Compatible Nonlocal Poisson Brackets of Hydrodynamic Type and Integrable Hierarchies”, Functional Analysis and Its Applications, 37, № 2, 2003, 103

- Simonetta Abenda, Tamara Grava, “Modulation of the Camassa-Holm equation and reciprocal transformations”, Annales de l'Institut Fourier, 55, № 6, 2005, 1803
