@article{Lee_2022, title={Viroids and Viroid-like Circular RNAs: Do They Descend from Primordial Replicators?}, volume={12}, ISSN={2075-1729}, url={http://dx.doi.org/10.3390/life12010103}, DOI={10.3390/life12010103}, number={1}, journal={Life}, publisher={MDPI AG}, author={Lee, Benjamin D. and Koonin, Eugene V.}, year={2022}, month=Jan, pages={103} }