W-K Lee, D.J. Preston, M.P. Nemitz, A. Nagarkar, A.K. MacKeith, B. Gorissen, N. Vasios, V. Sanchez, K. Bertoldi, L. Mahadevan, and G. M. Whitesides. 2022. “A buckling-sheet ring oscillator for electronics-free, multimodal locomotion.” Science Robotics, 7, 63, Pp. 1-12.