Loan adaptation of Japanese fricatives/affricates in Korean 論文 안상철・Ju Hee Lee ·2009-12-01 ·『Korean Journal of Linguistics』 34(4) pp. 919-938 doi:10.18855/lisoko.2009.34.4.007
Contrast and covert contrast: The phonetic development of voiceless sibilant fricatives in English and Japanese toddlers 論文 Fangfang Li・Jan Edwards・Mary E. Beckman ·2008-10-30 ·『Journal of Phonetics』 37(1) pp. 111-124 doi:10.1016/j.wocn.2008.10.001