(1)
Sahakyan, B. ON THE $ \langle \rho_j,W_j \rangle $ GENERALIZED COMPLETELY MONOTONE FUNCTIONS. Proc. YSU A: Phys. Math. Sci. 2020, 54 (1 (251), 35-43. https://doi.org/10.46991/PYSU:A/2020.54.1.035.