Initial Studies of American Elm Diseases in Illinois. Illinois Natural History Survey Bulletin, Champaign, IL, v. 20, n. 1-5, p. 1–70, 1932. DOI: 10.21900/j.inhs.v20.266. Disponível em: https://iopn.library.illinois.edu/journals/inhs/article/view/266.. Acesso em: 18 may. 2024.