Steponavičus, Albertas. „Hierarchal Relations within the System of Distinctive Features (with special reference to English and Lithuanian)“. Kalbotyra 32, no. 3 (gruodžio 1, 1981): 50–62. žiūrėta rugsėjo 17, 2026. https://www.zurnalai.vu.lt/kalbotyra/article/view/22004.