TY - JOUR AU - M. G. Bashmakova AU - N. V. Sycheva TI - On some methods of evaluating irrationality measure of the function $\arctan x$ values JO - Čebyševskij sbornik PY - 2024 SP - 5 EP - 15 VL - 25 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2024_25_1_a0/ LA - ru ID - CHEB_2024_25_1_a0 ER -