@article{Purpura2011,
author = {Purpura, D.J. and Hume, L.E. and Sims, D.M. and Lonigan, C.J.},
title= {Early literacy and early numeracy: The value of including early literacy skills in the prediction of numeracy development},
year = {2011},
doi = {10.1016/j.jecp.2011.07.004},
volume = {110},
number = {4},
pages = {647--658},
}