R. Kripal, “Zero Field Splitting Parameter of Mn^{2+}-Doped Tl_{2}Cd_{2}(SO_{4})_{3} Single Crystals at Axial Symmetry Site”, Acta Phys. Pol. A, vol. 143, no. 3, p. 217, Mar. 2023, doi: 10.12693/APhysPolA.143.217.