International Phonetic Association, Report on the 1989 Kiel Convention, Journal of the International Phonetic Association, 1989, 19: 67–80, doi:10.1017/S0025100300003868
International Phonetic Association, IPA news, Journal of the International Phonetic Association, 2005, 35 (2): 261–262, doi:10.1017/S0025100305002227
Olson, Kenneth S., Mono(PDF), Journal of the International Phonetic Association, 2004, 34 (02): 233–238 [2019-06-02], doi:10.1017/S0025100304001744, (原始内容存档(PDF)于2019-06-20)
Olson, Kenneth S; Hajek, John, The phonetic status of the labial flap, Journal of the International Phonetic Association, 1999, 29 (2): 101–114, doi:10.1017/S0025100300006484
Olson, Kenneth S; Hajek, John, Crosslinguistic insights on the labial flap, Linguistic Typology, 2003, 7 (2): 157–186, doi:10.1515/lity.2003.014
Olson, Kenneth; Schrag, Brian, An overview of Mono phonology, Wolff, H.E.; Gensler, O. (编), Proceedings from the 2nd World Congress of African Linguistics, Leipzig 1997, Cologne: Rüdiger Köppe: 393–409, 2000