@article{CRMATH_2021__359_8_945_0,
     author = {Nikolay Kuznetsov},
     title = {Characterization of balls via solutions of the modified {Helmholtz} equation},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {945--948},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {359},
     number = {8},
     year = {2021},
     doi = {10.5802/crmath.250},
     language = {en},
}