Disintegration of Heavy Nuclei - Bohr on the liquid drop model of fission. Published in Nature. dbhs.wvusd.k12.ca.us/Chem-History/Bohr-Fission-1939.html
On the Spectrum of Hydrogen - Address to the Physical Society of Copenhagen, published in Fysisk Tidsskrift. webserver.lemoyne.edu/faculty/giunta/bohr.html