@article{CRMATH_2021__359_7_823_0,
     author = {Morales, Alejandro H. and Shi, William},
     title = {Refinements and {Symmetries} of the {Morris} identity for volumes of flow polytopes},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {823--851},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {359},
     number = {7},
     year = {2021},
     doi = {10.5802/crmath.218},
     zbl = {07398736},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/crmath.218/}
}