Deise Santana Maia Jean Cousty Laurent Najman Benjamin Perret Characterization of Graph-Based Hierarchical Watersheds: Theory and Algorithms. 627-658 2020 62 J. Math. Imaging Vis. 5 https://doi.org/10.1007/s10851-019-00936-6 db/journals/jmiv/jmiv62.html#MaiaCNP20