Broeders, A. P.A., Tina Cambier-Langeveld, and Jos Vermeulen. 2002. “Obtaining Reference Material in a Case With Two Unknown Speakers: Getting Two Suspects on Speaking Terms”. International Journal of Speech, Language and the Law 9 (1): 87-93. https://doi.org/10.1558/sll.2002.9.1.87.