On why Japanese /r/ sounds are difficult for children to acquire

Takayuki Arai. On why Japanese /r/ sounds are difficult for children to acquire. In Frédéric Bimbot, Christophe Cerisara, Cécile Fougeron, Guillaume Gravier, Lori Lamel, François Pellegrino, Pascal Perrier, editors, INTERSPEECH 2013, 14th Annual Conference of the International Speech Communication Association, Lyon, France, August 25-29, 2013. pages 2445-2449, ISCA, 2013. [doi]

@inproceedings{Arai13a,
  title = {On why Japanese /r/ sounds are difficult for children to acquire},
  author = {Takayuki Arai},
  year = {2013},
  url = {http://www.isca-speech.org/archive/interspeech_2013/i13_2445.html},
  researchr = {https://researchr.org/publication/Arai13a},
  cites = {0},
  citedby = {0},
  pages = {2445-2449},
  booktitle = {INTERSPEECH 2013, 14th Annual Conference of the International Speech Communication Association, Lyon, France, August 25-29, 2013},
  editor = {Frédéric Bimbot and Christophe Cerisara and Cécile Fougeron and Guillaume Gravier and Lori Lamel and François Pellegrino and Pascal Perrier},
  publisher = {ISCA},
}