@article{Zawodniak:2009,
author
=
"J.Zawodniak",
title
=
"The effect of cognitive development on young learner L2 performance",
journal
=
"Acta Universitatis Nicolai Copernici : English Studies",
number
=
"T. 14",
pages
=
"209--219",
year
=
"2005",
}