Heat capacity of anisotropic Heisenberg antiferromagnet within the spin Hartree-Fock approach in quasi-1D regimeRoman Smit, Peter Kopietz and Oleksandr TsyplyatyevEur. Phys. J. B, 92 11 (2019) 252DOI: https://doi.org/10.1140/epjb/e2019-100387-9