Data-Driven Modeling of Weakly Nonlinear Circuits via Generalized Transfer Function Approximation Antonio Carlucci, Ion Victor Gosea, Stefano Grivet-talocia (2025) Data-Driven Modeling of Weakly Nonlinear Circuits via Generalized Transfer Function Approximation, In: IEEE ACCESS, pp. 2746-2762, ISSN: 2169-3536