@inproceedings{wiren-etal-2016-longitudinal, title = "Longitudinal Studies of Variation Sets in Child-directed Speech", author = {Wir{\'e}n, Mats and Nilsson Bj{\"o}rkenstam, Kristina and Grigonyt{\.{e}}, Gintar{\.{e}} and Cortes, Elisabet Eir}, editor = "Korhonen, Anna and Lenci, Alessandro and Murphy, Brian and Poibeau, Thierry and Villavicencio, Aline", booktitle = "Proceedings of the 7th Workshop on Cognitive Aspects of Computational Language Learning", month = aug, year = "2016", address = "Berlin", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest_wac_2008/W16-1907/", doi = "10.18653/v1/W16-1907", pages = "44--52" }