@article{AAB+10c,
 author = {Andrienko, Gennady and Andrienko, Natalia and Bak, Peter and Bremm, Sebastian and Keim, Daniel A. and Von Landesberger, Tatiana and Pölitz, Christian and Schreck, Tobias},
 journal = {Journal of Location Based Services (JLBS)},
 title = {Analyzing Spatio-temporal Patterns of Mobile Phone Calls With Self-Organizing Maps},
 year = {2010}
}