"3. The Strong Force"(PDF). Department of Applied Mathematics and Theoretical Physics, University of Cambridge. Archived from the original(PDF) on 22 October 2021. Retrieved 10 January 2023.
"3. The Strong Force"(PDF). Department of Applied Mathematics and Theoretical Physics, University of Cambridge. Archived from the original(PDF) on 22 October 2021. Retrieved 10 January 2023.