@article{10_4171_dm_969,
     author = {David Jekel and Jennifer Pi},
     title = {An elementary proof of the inequality $\chi\leq\chi^{*}$ for~conditional free entropy},
     journal = {Documenta mathematica},
     pages = {1085--1124},
     publisher = {mathdoc},
     volume = {29},
     number = {5},
     year = {2024},
     doi = {10.4171/dm/969},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/969/}
}