@inproceedings{DBLP:conf/ifip3-1/DettoriGL97,
author = {Giuliana Dettori and
Simonetta Greco and
Enrica Lemut},
title = {Complementing different software environments to mediate
the introduction of variable, parameter and unknown},
booktitle = {Secondary School Mathematics in the World of Communication
Technology},
year = {1997},
pages = {229-232},
crossref = {DBLP:conf/ifip3-1/1997},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/ifip3-1/1997,
editor = {David Tinsley and
David C. Johnson},
title = {Information and Communications Technologies in School Mathematics,
IFIP TC3/WG3.1 Working Conference on Secondary School Mathematics
in the World of Communication Technology: Learning, Teching,
and the Curriculum, 26-31 October 1997, Grenoble, France},
booktitle = {Secondary School Mathematics in the World of Communication
Technology},
publisher = {Chapman {\&} Hall},
series = {IFIP Conference Proceedings},
volume = {119},
year = {1998},
isbn = {0-412-82100-1},
bibsource = {DBLP, http://dblp.uni-trier.de}
}