Luis Benetti Ramos published a new paper in Journal of Fluid Mechanics on the
"Fluid–solid Floquet stability analysis of self-propelled heaving foils"
https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/fluidsolid-floquet-stability-analysis-of-selfpropelled-heaving-foils/B36A9ED92F4C6CE16FAA4D7995108489