AUTHOR=Rodrigues Hugo , Ceddia Marcos Bacis , Vasques Gustavo Mattos , Grunwald Sabine , Babaeian Ebrahim TITLE=AutoRA: an innovative algorithm for automatic delineation of reference areas in support of smart soil sampling and digital soil twins JOURNAL=Frontiers in Soil Science VOLUME=Volume 5 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/soil-science/articles/10.3389/fsoil.2025.1557566 DOI=10.3389/fsoil.2025.1557566 ISSN=2673-8619