2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) 2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF), Jul 2020, Keystone, United States. pp.1-2, ⟨10.1109/IFCS-ISAF41089.2020.9234846⟩