@Article{ Rico-Romero_LUPIÁÑEZ:239-242,

author = { Luis Rico-Romero and JOSÉ LUIS LUPIÁÑEZ GÓMEZ } ,

title = { RESEARCH IN MATHEMATICS EDUCATION: NUMERICAL THINKING },

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

year = { 2009 },

pages = { 239-242 },

}