@article{SH-TCCI, author = {Linh Anh Nguyen and Andrzej Sza{\l}as}, title = {Tableaux with Global Caching for Checking Satisfiability of a Knowledge Base in the Description Logic {\it SH}}, journal = {T. Computational Collective Intelligence}, volume = {1}, pages = {21-38}, publisher = {Springer}, year = {2010} }