@inbook{KKAA11a,
 author = {Kisilevich, Slava and Keim, Daniel A. and Andrienko, Natalia and Andrienko, Gennady},
 booktitle = {Lecture Notes in Geoinformation and Cartography},
 publisher = {Springer Berlin Heidelberg},
 title = {Towards acquisition of semantics of places and  events by multi-perspective analysis of geotagged photo collections},
 year = {2011}
}