Patkowski M. Looking for structure: Is the two-word stage of language development in apes and human children the same or different?. 10.14746/ssllt [Internet]. 2014 Jan. 1 [cited 2024 Nov. 22];4(3):507-28. Available from: https://pressto.amu.edu.pl/index.php/ssllt/article/view/3932