Cyranoski, David: Profile of a killer: the complex biology powering the coronavirus pandemic. Nature, 4.5.2020, 581. vsk, s. 22–26. doi:10.1038/d41586-020-01315-7(englanniksi)
Clinical evidence that the pandemic from 1889 to 1891 commonly called the Russian flu might have been an earlier coronavirus pandemic. Wiley, 13.7.2021, 14. vsk, nro 5. PubMed Central:8441924Artikkelin verkkoversio.