Chadwick, James (). „The existence of a neutron”. Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences. 136 (830): 692–708. Bibcode:1932RSPSA.136..692C. doi:10.1098/rspa.1932.0112.
Chadwick, James (). „The existence of a neutron”. Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences. 136 (830): 692–708. Bibcode:1932RSPSA.136..692C. doi:10.1098/rspa.1932.0112.