The Measurement of phonetic Similarity. - Peter Ladefoged (COLING, 1969)

Attempts by human speakers to reproduce Fant's nomograms. - Peter Ladefoged; Anthony Bladon (Speech Commun., 1982)

Characteristics of the voice source. - Peter Ladefoged; Ian Maddieson; Michel Jackson; Marie K. Huffman (ECST, 1987)

Knowing enough to analyze spoken languages. - Peter Ladefoged (ICSLP, 1992)

Liquids in tamil. - Shrikanth S. Narayanan; Abigail Kaun; Dani Byrd; Peter Ladefoged; Abeer Alwan (ICSLP, 1996)

Fieldwork techniques for relating formant frequency, amplitude and bandwidth. - Peter Ladefoged; Gunnar Fant (EUROSPEECH, 1997)

Phonation types: a cross-linguistic overview. - Matthew Gordon; Peter Ladefoged (J. Phonetics, 2001)

Phonetic structures of Aleut. - Alice Taff; Lorna Rozelle; Taehong Cho; Peter Ladefoged; Moses Dirks; Jacob A. Wegelin (J. Phonetics, 2001)

Acoustic and aerodynamic correlates of Korean stops and fricatives. - Taehong Cho; Sun-Ah Jun; Peter Ladefoged (J. Phonetics, 2002)

Yeyi Clicks: Acoustic Description and Analysis. - Sean A. Fulop; Peter Ladefoged; Fang Liu 018; Rainer Vossen (Phonetica, 2003)

Phonetic structures of Montana Salish. - Edward Flemming; Peter Ladefoged; Sarah Thomason (J. Phonetics, 2008)