1. About the human exploration and operations mission directorate;Pline,2020
2. Information needed to make radiation protection space missions beyond low-earth orbit;NCRP,2006
3. Health risks from exposure to low levels of ionizing radiation: BEIR VII phase 2;Monson,2006
4. Solar particle events and radiation exposure in space;Hu,2017
5. Coronal mass ejections;Hathaway,2014