Todor DIMOV; Ilia ILIEV; Antonina HRISTOVA. Recent Study of Optical Activity and Faraday Rotation around the Edge Absorption of the Crystals \(Bi_{12}SiO_{20}\) and \(Bi_{12}SiO_{20}\):M (M = Co, Fe). Advanced Aspects of Engineering Research Vol. 16, [S. l.], p. 1–7, 2021. DOI: 10.9734/bpi/aaer/v16/8222D. Disponível em: https://stm.bookpi.org/AAER-V16/article/view/1986. Acesso em: 4 jun. 2026.