STAMM, G. M. V.; FISZDON, W. New methods to measure the vortex-line density during the passage of a supercritical second-sound pulse. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 16, n. 5, p. 549–551, 1990. Disponível em: https://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f16-0549e. Acesso em: 2 трав. 2024.