Virial theorem for a cloud of stars obtained from the Jeans equations with second correlation moments A. A. Stupka, E. M. Kopteva, M. A. Saliuk and I. M. Bormotova Eur. Phys. J. C, 83 7 (2023) 598 Published online: 11 July 2023 DOI: 10.1140/epjc/s10052-023-11737-y