@article{RM_2022_77_5_a4,
     author = {A. I. Aptekarev and V. A. Kalyagin},
     title = {Spectral problem for the vector {Stieltjes} string},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {946--948},
     publisher = {mathdoc},
     volume = {77},
     number = {5},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2022_77_5_a4/}
}