@inbook{9bd3d2614e3749959b397a003c637f5d,
title = "The interplay between fluency and appreciation in secondary students{\textquoteright} first encounter with proof",
author = "Ioannis Kanellos and Elena Nardi and Irene Biza",
year = "2013",
language = "English",
volume = "5",
editor = "A.M. Lindmeier and A. Heinze",
booktitle = "Proceedings of the 37th Conference of the International Group for the Psychology of Mathematics Education (PME)",
publisher = "Psychology of Mathematics Education (PME)",
}