@Article{ GALLARDO_GONZÁLEZ:10-15,
author = { JESÚS GALLARDO ROMERO and JOSÉ LUIS GONZÁLEZ MARI } ,
title = { ASSESSING UNDERSTANDING IN MATHEMATICS: STEPS TOWARDS AN OPERATIVE MODEL },
journal = { FOR THE LEARNING OF MATHEMATICS },
year = { 2006 },
volume = { 26 },
issn = { 0228-0671 },
pages = { 10-15 },
}