@inproceedings{bfklno-swcrhaa-14,
 author = {Barth, Lukas and Fabrikant, Sara Irina and Kobourov, Stephen G. and Lubiw, Anna and Nöllenburg, Martin and Okamoto, Yoshio and Pupyrev, Sergey and Squarcella, Claudio and Ueckerdt, Torsten and Wolff, Alexander},
 booktitle = {Theoretical Informatics (LATIN'14)},
 doi = {10.1007/978-3-642-54423-1_45},
 editor = {Viola, Alfredo},
 ee = {1311.4778},
 pages = {514--525},
 publisher = {Springer Berlin Heidelberg},
 series = {LNCS},
 title = {Semantic Word Cloud Representations: Hardness and Approximation Algorithms},
 url = {http://arxiv.org/abs/1311.4778},
 volume = {8392},
 year = {2014}
}