Longitudinal Studies of Variation Sets in Child-directed Speech Mats Wirén author Kristina Nilsson Björkenstam author Gintarė Grigonytė author Elisabet Eir Cortes author 2016-08 text Proceedings of the 7th Workshop on Cognitive Aspects of Computational Language Learning Anna Korhonen editor Alessandro Lenci editor Brian Murphy editor Thierry Poibeau editor Aline Villavicencio editor Association for Computational Linguistics Berlin conference publication wiren-etal-2016-longitudinal 10.18653/v1/W16-1907 https://aclanthology.org/W16-1907/ 2016-08 44 52