%0 Journal Article %T Toward a compact hybrid brain-computer interface (BCI): Performance evaluation of multi-class hybrid EEG-fNIRS BCIs with limited number of channels %A Kwon, Jinuk %A Shin, Jaeyoung %A Im, Chang-Hwan %J PLoS ONE %V 15 %N 3 %D 2020-03-18 %I Public Library of Science %~ DeepDyve