Frankenberg, Claudia ; Weiner, Jochen ; Schultz, Tanja ; Knebel, Maren ; Degen, Christina ; Wahl, Hans-W. ; Schroeder, Johannes (2019) Perplexity – a new predictor of cognitive changes in spoken language? – results of the Interdisciplinary Longitudinal Study on Adult Development and Aging (ILSE). Linguistics Vanguard, 5 (s2). pp. 1-10. ISSN 2199-174X