AUTHOR=Liu Bangyuan , Wang Tianyu , Kerimoglu Deniz , Kojouharov Velin , Hammond Frank L. , Goldman Daniel I. TITLE=Robust self-propulsion in sand using simply controlled vibrating cubes JOURNAL=Frontiers in Robotics and AI VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2024.1298676 DOI=10.3389/frobt.2024.1298676 ISSN=2296-9144