A Resistor/Trimming-Less Self-Biased Current Reference Class with Area Down to $3,500 mu mathrm{m}^{2}$, 42.8 pW Power and 10.4% Accuracy across Corner Wafers in 180 nm. - Luigi Fassio; Hoang Hong Hanh; Massimo Alioto (A-SSCC, 2023)