TY  - RPRT
TI  - Electromagnetic proton–neutron mass difference
AU  - Tomalak, Oleksandr
PY  - 2020
DO  - 10.1140/epjp/s13360-020-00413-9
UR  - https://www.osti.gov/biblio/1546035
ID  - 1546035
ER  -