@article {656596,
	title = {   Interpolated memory tests reduce mind wandering and improve learning of online lectures},
	journal = {Proceedings of the National Academy of Sciences USA},
	volume = {110},
	year = {2013},
	pages = {6313-6317},
	author = {Szpunar, K.K. and Kahn, N. Y. and Schacter, D. L.}
}
