@Article{ MOLINA_CASTRO_MASON:75-86,

author = { MARTA MOLINA and ENCARNACIÓN CASTRO and JOHN H. MASON } ,

title = { ELEMENTARY STUDENTS APPROACHES TO SOLVING TRUE/FALSE NUMBER SENTENCES },

journal = { PNA: REVISTA DE INVESTIGACIÓN EN DIDÁCTICA DE LA MATEMÁTICA },

year = { 2008 },

volume = { 2 },

issn = { 1886-1350 },

pages = { 75-86 },

doi = { www.pna.es },

}