@Article{ Castro-Martinez_CASTRO:7-20,

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

title = { USING A MODEL TO DESCRIBE STUDENT¿S REASONING IN PROBLEM SOLVING },

journal = { Revista Electrónica de Investigación Psicoeducativa y Psicopedagógica },

year = { 2009 },

volume = { 7 },

pages = { 7-20 },

}