Henriques, A. S., Skrelin, P. A., Evdokimova, V. V., Kachkovskaia, T. V., Borrego, M. C., Ferreira, L. P., Zuleta, P. P. B., Ruseishvili, S. and Madureira, S. (2020) “The perception of brazilian Portuguese open and close mid vowels by native Russian speakers”, Journal of Speech Sciences. Campinas, SP, 8(2), pp. 59–84. doi: 10.20396/joss.v8i2.14995.