Neufeld, Michael J., Lunine, Jonathan I., Stern, S. Alan, Young, Leslie A., and Binzel, Richard P. 2021. "Early Pluto Science, the Imperative for Exploration, and New Horizons." In The Pluto System after New Horizons. Stern, S. Alan, Binzel, Richard P., Grundy, William M., Moore, Jeffrey M., and Young, Leslie A., editors. 9–20. Tucson, Arizona: University of Arizona Press. In Space Science Series.