初見の文献のみ。自分の検索用。 Biber, D., et al. (2024). Grammatical analysis is required to describe grammatical (and “syntactic”) complexity: A commentary on “complexity and difficulty in second language acquisition: A theoretical and methodological overview.” Language Learning. フランソワ・デュボワ (2019). 『作曲の科学—美しい音楽を生…