@article{VMUMM_2021_4_a2,
     author = {G. V. Kalachev and S. Yu. Sadov},
     title = {An existence criterion for maximizers of convolution operators in $L_1(\mathbb{R}^n)$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {17--22},
     publisher = {mathdoc},
     number = {4},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2021_4_a2/}
}