@article{10_4171_ggd_748,
     author = {Gideon Amir and Gady Kozma},
     title = {Groups with minimal harmonic functions as small as you like (with an appendix by {Nicol\'as} {Matte} {Bon)}},
     journal = {Groups, geometry, and dynamics},
     pages = {1--24},
     year = {2024},
     volume = {18},
     number = {1},
     doi = {10.4171/ggd/748},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/748/}
}