@Article{ RAMÍREZ_Castro_Piñeiro_RUIZ,

author = { RAFAEL RAMÍREZ UCLÉS and Elena Castro Rodríguez and Juan Luis Piñeiro and JUAN FRANCISCO RUIZ HIDALGO } ,

title = { What makes a task a problem in early childhood education? },

journal = { European Early Childhood Education Research Journal },

year = { 2018 },

volume = { 26 },

pages = { - },

}