@conference {3715,
	title = {Pebble-in-the-Pond?! Does a Hashtag Conversation on Twitter connect Teachers?},
	booktitle = {EARLI - SIG 14 (Learning and Professional Development)},
	year = {2014},
	address = {Oslo, Norway},
	keywords = {Informal Learning, Social Media, Teacher Education, Twitter},
	author = {Martin Rehm and Preussler, Annabell and Michael Kerres and Ad Notten}
}
