BibTex format
@inproceedings{Lee:2012,
author = {Lee, K and Kim, TK and Demiris, Y},
pages = {3778--3782},
publisher = {IEEE},
title = {Learning Action Symbols for Hierarchical Grammar Induction},
url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6460987},
year = {2012}
}