@conference {19823,
	title = {Studying trainee teacher educators{\textquoteright} documentational work in technology enhanced mathematics},
	booktitle = {Proceedings of the 37th Conference of the International Group for the Psychology of Mathematics Education (PME 37)},
	volume = {4},
	year = {2013},
	pages = {65-72},
	publisher = {PME},
	organization = {PME},
	address = {Kiel, Germany},
	author = {G Psycharis and E Kalogeria},
	editor = {A M Lindmeier and A Heinze}
}
