Len, T. A.     Raman spectroscopy investigations of graphite intercalation compounds with bromine [Текст] / T.A. Len, I.V. Ovsiienko, L.Yu. Matzui та ін. // Sixteenth International Young Scientists Conference "Optics & High Technology Material Science SPO 2015" : ski. works : Oct. 22-25, 2015, Kyiv, Ukraine : devoted to intern. year of light-based technoligies a. 75th anniversary of Fac. of physics of Taras Schevchenko Nat. Univ. of Kyiv / Taras Shevchenko Nat. Univ. of Kyiv (TSNUK) ; [progr. comm.: O.K. Zakusylo (head) et al.]. — Kyiv : Київський університет, 2015. — P. 43-44.