D. A. Kukusta, L. V. Bekenov, and V. N. Antonov, Electronic structure and resonant inelastic X-ray scattering in pyrochlore Y₂Os₂O₇, Low Temp. Phys. 52, (2026) (in press) [Fiz. Nyzk. Temp. 52, 1330–1339, (2026)].