GAFKA, D. Fullwave theory of Δv/v SAW waveguide and couplers. Archives of Acoustics, [S. l.], v. 16, n. 2, p. 249–267, 1991. Disponível em: https://acoustics.ippt.gov.pl/index.php/aa/article/view/1229. Acesso em: 4 mar. 2026.