SYVOKON, V.; KOVDRYA, Y. Conductivity of a 2D electron crystal over liquid helium in the region of coupled electron–ripplon resonances: Physics in Quantum Crystals. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 29, n. 9-10, p. 967–969, 2003. DOI: 10.1063/1.1614177. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f29-0967e. Acesso em: 11 лис. 2025.