Enrico Fermi's first 5 articles (1921-23)
 translated into English

by donato bini, bob jantzen, andrea geralico and collaborators for ICRA (Remo Ruffini)

Original articles in Italian:

https://archive.org/details/collectedpapersn007155mbp/page/n11/mode/2up?view=theater

https://archive.org/details/collectedpapersn007155mbp/page/n1113/mode/2up