@article{RM_2021_76_4_a5,
     author = {A. I. Aptekarev and V. G. Lysov},
     title = {Multilevel interpolation for {Nikishin} systems and boundedness of {Jacobi} matrices on binary trees},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {726--728},
     year = {2021},
     volume = {76},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2021_76_4_a5/}
}