Http://Dx.Doi.Org/10.1016/J.Compedu.2012.03.025. Echeverria A., B. E. & S., L. Computers & Education, 2012.
doi  bibtex   
@article{Paper_000256,
title   = {Http://Dx.Doi.Org/10.1016/J.Compedu.2012.03.025},
author  = {Echeverria A., Barrios E., Nussbaum M., Am�stica M. and Leclerc S.},
journal = {Computers & Education},
volume  = {59},
number  = {2},
doi     = {10.1016/j.compedu.2012.03.025},
year    = {2012}}
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