@article{10_4153_S0008414X24000014,
     author = {Mkrtchyan, Aleksandr and Vagharshakyan, Armen},
     title = {Trigonometric convexity of the multidimensional indicator},
     journal = {Canadian journal of mathematics},
     pages = {384--399},
     year = {2025},
     volume = {77},
     number = {2},
     doi = {10.4153/S0008414X24000014},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008414X24000014/}
}