%0 Journal Article %T A four-state adaptive Hopf oscillator %A Li, XiaoFu %A Shougat, Md Raf E Ul %A Kennedy, Scott %A Fendley, Casey %A Dean, Robert N. %A Beal, Aubrey N. %A Perkins, Edmon %J PLoS ONE %V 16 %N 3 %D 2021-03-25 %I Public Library of Science %~ DeepDyve