I used the paper “Autonomous Soft Robotic Fish Capable of Escape Maneuvers Using Fluidic Elastomer Actuators”, cited in “Design, fabrication and control of soft robots” by Rus and Tolley as the root.
From there, I used Web of Science to access all the papers that cited the root paper. The root paper had over 500 citations.
The three result paper I chose were “4D printing Light-Driven soft actuators based on Liquid-Vapor phase transition composites with inherent sensing capability” (DOI: 10.1016/j.cej.2022.140271), “A Wire-driven Elastic Robotic Fish and its Design and CPG-Based Control” (DOI: 10.1007/s10846-022-01797-9), and “Bioinspired Multi-material Polyjet-printed Frog Robot for Synchronous and Asynchronous Swimming” (DOI: 10.1007/s42235-022-00321-x)