R. Boca: Magnetic Parameters and Magnetic Functions in Mononuclear Complexes Beyond the Spin-Hamiltonian Formalism: Introduction.- Energy Levels of Multi-Term Systems.- Modeling the Magnetic Parameters.- Calculations of Energy Levels and Magnetic Parameters.- Empirical Magnetic Parameters.- Conclusions.- References.- Appendix A: Spectroscopic Constants, Coefficients and Matrix Elements.- Appendix B: Elements of the Irreducible Tensor Approach.- Appendix C: Classification of Crystal-Field Terms and Multiplets.- Appendix D: Calculated Energy Levels and Magnetic Parameters