Liberman AS. The Glottal Stop in English as Viewed Against its Germanic Background. KLB [Prieiga per internetą]. 1972 m.gruodžio1 d. [žiūrėta 2025 m.spalio26 d.];23(3):45–57. Adresas: https://test.zurnalai.vu.lt/kalbotyra/article/view/20126