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audio_captcha [2010/01/28 11:59] – nishimotz | audio_captcha [2010/01/28 12:00] – nishimotz | ||
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Notice: this is a draft of unpublished working paper by Takuya Nishimoto. | Notice: this is a draft of unpublished working paper by Takuya Nishimoto. | ||
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+ | Part of the work is published in Japanese. | ||
===== References ===== | ===== References ===== |