@article{SM_2022_213_6_a1,
     author = {V. N. Dubinin},
     title = {An upper bound for the least critical values of finite {Blaschke} products},
     journal = {Sbornik. Mathematics},
     pages = {744--751},
     publisher = {mathdoc},
     volume = {213},
     number = {6},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2022_213_6_a1/}
}