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Link to original content: https://dblp.uni-trier.de/rec/conf/dlog/LiebigR97.xml
Thorsten Liebig Dietmar F. Rösner Action Hierarchies in Description Logics. 1997 conf/dlog/1997 Description Logics http://dl.kr.org/dl97/proceedings/liebig.ps.gz db/conf/dlog/dlog1997.html#LiebigR97