@inproceedings{ester06joint,
        title = {Joint Cluster Analysis of Attribute Data and Relationship Data: the Connected k-Center Problem},
        author = {Martin Ester and Rong Ge and Byron J. Gao and Zengjian Hu and Boaz Ben-Mosche},
        journal = {SDM},
        pages = {246--257},
        year = 2006,
        biburl = {http://www.bibsonomy.org/bibtex/2407df79cad1285f05d5f642541ea4e9b/marianne},
	keywords = {relationship attribute network clustering}
}