Broad-band noise and quasi-periodic oscillation characteristics of the X-ray pulsar RX J0440.9+4431. - Li, P P; Tao, L; Ma, R C; Ge, M Y; Zhao, Q C; Zhao, S J; Zhang, L; Bu, Q C; Kong, L D; Tuo, Y L; Ji, L; Zhang, S; et al. (Monthly Notices of the Royal Astronomical Society, 2024)