@conference {Huang2009,
	title = {On geo-social network services},
	booktitle = {2009 17th International Conference on Geoinformatics, Geoinformatics 2009},
	year = {2009},
	note = {施引文献 11},
	doi = {10.1109/GEOINFORMATICS.2009.5293492},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-74349109294\&partnerID=40\&md5=8d969edc221ee4bd6365045c7496a6ca},
	author = {Q. Huang and Y. Liu}
}
