Non-primitive recursive decidability of products of modal logics with expanding domains

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\begin{bibtex} @article{DBLP:journals/apal/GabelaiaKWZ06,

 author    = {David Gabelaia and
              Agi Kurucz and
              Frank Wolter and
              Michael Zakharyaschev},
 title     = {Non-primitive recursive decidability of products of modal
              logics with expanding domains},
 journal   = {Ann. Pure Appl. Logic},
 volume    = {142},
 number    = {1-3},
 year      = {2006},
 pages     = {245-268},
 ee        = {http://dx.doi.org/10.1016/j.apal.2006.01.001},
 bibsource = {DBLP, http://dblp.uni-trier.de}

}

\end{bibtex}