@article{JCA_2024_31_1_JCA_2024_31_1_a18,
     author = {M. Balcerowski},
     title = {Jensen {Convex} {Functions} on {Semigroups}},
     journal = {Journal of convex analysis},
     pages = {297--304},
     year = {2024},
     volume = {31},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2024_31_1_JCA_2024_31_1_a18/}
}