Keys, Sonia, Vereš, Peter, Payne, Matthew J., Holman, Matthew J., Jedicke, Robert, Williams, Gareth V., Spahr, Tim, Asher, David J., and Hergenrother, Carl. 2019. "The digest2 NEO Classification Code." Publications of the Astronomical Society of the Pacific, 131 064501. https://doi.org/10.1088/1538-3873/ab1157.
2019
