Jutta Trautwein; Sascha Schroeder (28. april 2016), "How many words do children know? A corpus-based estimation of children's total vocabulary size", Language Testing, 34 (3): 297-320, doi:10.1177/0265532216641152, Wikidata Q56145261
Jutta Trautwein; Sascha Schroeder (28. april 2016), "How many words do children know? A corpus-based estimation of children's total vocabulary size", Language Testing, 34 (3): 297-320, doi:10.1177/0265532216641152, Wikidata Q56145261