ФНТ E. 7th International Conference on Cryocrystals and Quantum Crystals Wroclaw, Poland, July 31st – August 5th, 2008. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 35, n. 4, p. 331–332, 2009. DOI: 10.1063/1.3114587. Disponível em: http://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f35-0331e. Acesso em: 2 трав. 2024.