AUTHOR=Schulze Paul Robert , Müller Steffen , Müller Tristan , Gross Horst-Michael TITLE=On realizing autonomous transport services in multi story buildings with doors and elevators JOURNAL=Frontiers in Robotics and AI VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2025.1546894 DOI=10.3389/frobt.2025.1546894 ISSN=2296-9144