Discrimination of English /r-l/ and /w-y/ by Japanese infants at 6-12 months: language-specific developmental changes in speech perception abilities. - Teruaki Tsushima; Osamu Takizawa; Midori Sasaki; Satoshi Shiraki; Kanae Nishi; Morio Kohno; Paula Menyuk; Catherine T. Best (ICSLP, 1994)