\input zb-basic \input zb-ioport \iteman{io-port 50138338} \itemau{Bowong, Samuel; Yamapi, Ren\'e} \itemti{Adaptive observer based synchronization of a class of uncertain chaotic systems} \itemso{I. J. Bifurcation and Chaos 18, No. 8, 2425-2435 (2008).} \itemcc{} \itemut{} \itemli{doi:10.1142/S0218127408021798} \end