@article{CHEB_2023_24_1_a9,
     author = {A. Yu. Popov and V. B. Sherstyukov},
     title = {Strengthening of {Gaisin's} lemma on the minimum modulus of even canonical products},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {127--138},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2023_24_1_a9/}
}