@inproceedings{ CASTRO_Morcillo-_Castro-Martinez:547-558,

author = { ENRIQUE CASTRO MARTINEZ and Nicolas Morcillo- and Encarnacion Castro-Martinez } ,

title = { REPRESENTATIONS PRODUCED BY SECONDARY EDUCATION PUPILS IN MATHEMATICAL PROBLEM SOLVING },

booktitle = { ANNUAL MEETING OF THE NORTH AMERICA CONFERENCE FOR THE PSYCHOLOGY OF MATHEMATICS EDUCATION (21.1999.MORELOS, MÉXICO) },

year = { 1999 },

pages = { 547 - 558 },

location = { MORELOS, MÉXICO },

}