Voicing in Qaqet: Prenasalization and language contact. - Marija Tabain; Marc Garellek; Birgit Hellwig; Adele Gregory; Richard Beare (J. Phonetics, 2022)

Negation in First Language Acquisition: Universal or Language-Specific? - Sakine Çabuk Balli; Jekaterina Mazara; Aylin C. Küntay; Birgit Hellwig; Barbara B. Pfeiler; Paul Widmer; Sabine Stoll (Cogn. Sci., 2025)