%O Journal Article 
%F legland-mcss00a
%A Le Gland, François
%A Mevel, Laurent
%T Exponential forgetting and geometric ergodicity in hidden Markov models
%J Mathematics of Control, Signals and Systems
%V 13
%N 1
%P 63-93
%U http://dx.doi.org/10.1007/PL00009861
%8 February
%D 2000
%K identification