@INPROCEEDINGS {13543,
author={M. Nascimento and . . and J. A. Martins and F. Martins and M. V. Pires and C. Martins and M. Rodrigues and J. Castro and A. Caseiro},
doi={0},
booktitle={Congress of European Research in Mathematics Education},
title={Giving sense to student’s productions - a way to improve (future) teachers’ knowledge and training.},
year={2013},
month={February},
volume={1},
pages={-} 
}