The Role of F2 and F3 in the Perception of Rhoticity: Evidence from Listening Experiments. - Barry Heselwood; Leendert Plug (ICPhS, 2011)

Epenthetic and excrescent vowels in stop sequences in Tripolitanian Libyan Arabic. - Barry Heselwood; Abdurraouf Shitaw; Aimen Ghummed; Leendert Plug (ICPhS, 2015)