@conference{ESS+11,
	author = {Markus Endler and Alexandre Skyrme and Daniel Schuster and Thomas Springer},
	title = {Defining Situated Social Context for Pervasive Social Computing},
	booktitle = {Second IEEE Workshop on Pervasive Collaboration and Social Networking (PerCol)},
	year = {2011},
	address = {Seattle, WA, USA}
}