Bernhardt, Barbara May, D. Ignatova, W. Amoako, N. Aspinall, S. Marinova-Todd, J. P. Stemberger, and K. Yokota. “Bulgarian Consonant Acquisition in Preschoolers With Typical Versus Protracted Phonological Development”. Journal of Monolingual and Bilingual Speech 1, no. 2 (November 5, 2019): 143–181. Accessed July 16, 2024. https://journal.equinoxpub.com/JMBS/article/view/11801.