Non-linear analysis of EEG signals at various sleep stages.

U. Rajendra Acharya Oliver Faust N. Kannathal TjiLeng Chua Swamy Laxminarayan Non-linear analysis of EEG signals at various sleep stages. 37-45 2005 80 Computer Methods and Programs in Biomedicine 1 http://dx.doi.org/10.1016/j.cmpb.2005.06.011 db/journals/cmpb/cmpb80.html#AcharyaFKCL05