Perceptual evidence for allophonic variation of the palatal fricative /ç/ in spontaneous Berlin German. Jannedy, Stefanie ; Weirich, Melanie ; Brunner, Jana ; Mertins, Micaela Abstract Publication: Acoustical Society of America Journal Pub Date: 2010 DOI: 10.1121/1.3508800 Bibcode: 2010ASAJ..128.2458J