@conference {19817,
	title = {Mathematics and science teachers{\textquoteright} collaboration: searching for common grounds},
	booktitle = {Proceedings of the 40th Conference of the International Group for the Psychology of Mathematics Education (PME 40)},
	volume = {4},
	year = {2016},
	pages = {91-98},
	publisher = {PME},
	organization = {PME},
	address = {Szeged, Hungary},
	author = {D Potari and G Psycharis and V Spiliotopoulou and C Triantafillou and T Zachariades and A Zoupa},
	editor = {C Csikos and A Rausch and J Szitanyi}
}
