@article{10.1109/TKDE.2011.173,
author = {Vincent Ranwez and Sylvie Ranwez and Stefan Janaqi},
title = {Subontology Extraction Using Hyponym and Hypernym Closure on is-a Directed Acyclic Graphs},
journal ={IEEE Transactions on Knowledge and Data Engineering},
volume = {24},
issue = {12},
issn = {1041-4347},
year = {2012},
pages = {2288-2300},
doi = {http://doi.ieeecomputersociety.org/10.1109/TKDE.2011.173},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}