S.W.Heo, S.M.Kim, K.Y.Kim, H.J.Lee, S.Y.Kim, Y.J.Kim, S.M.Kim, H.I.Lee, S.G.Lee, K.R.Kim, S.H.Kang, B.H.Lee*, "Ternary full adder using multi-threshold graphene barristor," In preparation for IEEE Electron Device Letters (2018)