@inproceedings{ Carulla-_GÓMEZ:224-224,

author = { Cristina Carulla- and PEDRO GÓMEZ GUZMÁN } ,

title = { GRAPHIC CALCULATORS AND PROBLEM SOLVING. DO THEY HELP? },

booktitle = { CONFERENCE OF THE INTERNATIONAL GROUP FOR THE PSYCHOLOGY OF MATHEMATICS EDUCA (21.1997.LATHI, FINLAND) },

year = { 1997 },

pages = { 224 - 224 },

location = { LATHI, FINLAND },

}