Magnetic properties of the ternary oxide glasses, Li2O-B2 O3-Fe2O3 from 57Fe Mössbauer spectroscopy J.P. Sanchez et J.M. FriedtJ. Phys. France, 43 11 (1982) 1707-1716DOI: https://doi.org/10.1051/jphys:0198200430110170700
