Jørgensen JN, Varga S. Norms and practices of polylingual behaviour: a sociolinguistic model. ESUKA-JEFUL [Internet]. 2011Dec.31 [cited 2023Mar.30];2(2):49-8. Available from: https://ojs.utlib.ee/index.php/jeful/article/view/jeful.2011.2.2.03