Nikitin, Y. A., Zaporozhets, V. V., & Chernysh, I. G. (2003). Tribo-spectral method and identification of the micromechanical characteristics of the exfoliated graphite based materials. Proceedings of National Aviation University, 17(2), 91–95. https://doi.org/10.18372/2306-1472.2.11922