@inproceedings{ Vargas-gonzález_FERNÁNDEZ_RUIZ,

author = { María Fernanda Vargas-gonzález and JOSÉ ANTONIO FERNÁNDEZ PLAZA and JUAN FRANCISCO RUIZ HIDALGO } ,

title = { Derivative Tasks Proposed by Teachers in Training },

booktitle = { 44th Conference of the International Group for the Psychology of Mathematics Education },

year = { 2020 },

pages = { None - None },

location = { Khon Kaen, Thailand },

}