@article{lee,
  title = {Graphene Bridge Heterostructure Devices for Negative Differential Transconductance Circuit Applications},
  author = {Minjong Lee, Tae Wook Kim, Chang Yong Park, Kimoon Lee, Takashi Taniguchi, Kenji Watanabe, Min-gu Kim, Do Kyung Hwang, Young Tack Lee},
  publisher = {Springer Science and Business Media LLC},
  year = {2022},
  keywords = {multi-value logic, Graphene-bridge heterostructure, ambipolar semiconductor}
}