G, M., R, B., B, O., D, O., D, N., L, S., & /n, T. (2022). Optical identification of few layers of MoS₂, MoSₑ₂, WS₂ and WSₑ₂. Scientific Transaction of the National University of Mongolia. Physics, 29(518), 32–34. https://doi.org/10.22353/physics.v29i518.1196