Matysiak A. The effect of previous language experience and ‘proper’ L2 input on the aspiration of English voiceless stops by Polish adult immigrants to London. W: Waniek-Klimczak E, Cichosz A, red. Variability in English across Time and Space. Wydawnictwo Uniwersytetu Łódzkiego; 2016:57-75. doi:10.18778/8088-065-8.04