Corcoll, C., M. Forcadell, J. M. Fontana, M. T. Turell, and E. Valduvi. “Variation in Language Interaction Phenomena: A Global Approach”. Finnish Journal of Linguistics, no. 12 (January 1, 1999): 7–26. Accessed December 22, 2024. https://journal.fi/finjol/article/view/152794.