@article{,
	author          = {P. De Meo, E. Ferrara, F. Abel, L. Aroyo, G.J. Houben},
	title           = {Analyzing User Behavior across Social Sharing Environments},
	journal         = {ACM TIST, ACM Transactions on Intelligent Systems and Technology},
	year            = {2014},
	volume          = {5},
	number          = {1},
	pages           = {14:1-14:31},
	issn            = {2157-6904},
	group           = {WIS}
}