Walls, David2015-05-212015-05-211994-02Walls, David - Language learning: at sea in a complex domain: the implications of a theory of cognitive flexibility. "Discursos [Em linha] : estudos de língua e cultura portuguesa". ISSN 0872-0738. Nº 6 (Fev. 1994), p.45-630872-0738http://hdl.handle.net/10400.2/4054porLanguage learning: at sea in a complex domain: the implications of a theory of cognitive flexibilityjournal articleCC BY-NC 4.0