Idzelis, Rolandas Vitalius F. “The Interplay of Spontaneous (“Natural”) and Deliberate (‘Artificial’) in the Study of International English”. Kalbotyra 47, no. 3 (December 1, 1998): 22–38. Accessed July 17, 2024. https://www.journals.vu.lt/kalbotyra/article/view/31389.