Bugaev К., O. Ivanytskyi, B. Grinyuk, and I. Yakimenko. “Bose–Einstein Condensation As a Deposition Phase Transition of Quantum Hard Spheres and New Relations Between Bosonic and Fermionic Pressures”. Ukrainian Journal of Physics, vol. 65, no. 11, Nov. 2020, p. 963, doi:10.15407/ujpe65.11.963.