@article{Andersson:CIS:2008, title= {Observers in language-based control}, author= {Andersson, Sean B and Hristu-Varsakelis, Dimitris and Lahijanian, Morteza and others}, journal= {Communications in Information \& Systems}, volume= {8}, number= {2}, pages= {85--106}, year= {2008}, publisher= {International Press of Boston}, }