E. S. Yakub and L. N. Yakub, Polymorphic transitions in highly compressed molecular nitrogen. Application of Mayer group expansion for solids, Low Temp. Phys. 48, 165–169, (2021) [Fiz. Nyzk. Temp. 48, 185-190, (2021)] DOI: https://doi.org/10.1063/10.0009298.