Repetsky, S. P.     Energy spectrum of graphene with adsorbed potassium atoms [Текст] / S.P. Repetsky, I.G. Vyshivanaya, A.A. Yatseniuk, Ye.O. Borodin // 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. 72.