AUTHOR=Dämmer Gabriel , Lackner Michael , Laicher Sonja , Neumann Rüdiger , Major Zoltán TITLE=Corrigendum: Design of an Inkjet-Printed Rotary Bellows Actuator and Simulation of its Time-Dependent Deformation Behavior JOURNAL=Frontiers in Robotics and AI VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2021.729549 DOI=10.3389/frobt.2021.729549 ISSN=2296-9144