@conference {4871,
	title = {A 0.5V 560kHz 18.8fJ/Cycle Ultra-Low Energy Oscillator in 65nm CMOS with 96.1ppm/{\textdegree}C Stability Using a Duty-Cycled Digital Frequency-Locked Loop},
	booktitle = {2020 IEEE Symposium on VLSI Circuits (VLSI)},
	year = {2020},
	month = {2020},
	author = {Daniel S. Truesdell and Shuo Li and Benton H. Calhoun}
}
