Mårtensson, J., Eriksson, J., Bodammer, N. C., Lindgren, M., Johansson, M., Nyberg, L., & Lövdén, M. (2012). Growth of language-related brain areas after foreign language learning. NeuroImage, 63(1), 240-244. doi:10.1016/j.neuroimage.2012.06.043.