PALLOTTI, Gabriele; VARCASIA, Cecilia. Service telephone call openings: a comparative study on five European languages. Journal of Intercultural Communication, London, U.K., v. 8, n. 2, p. 1–25, 2008. DOI: 10.36923/jicc.v8i2.463. Disponível em: https://www.immi.se/index.php/intercultural/article/view/Pallottietal-2008-2. Acesso em: 27 mar. 2026.