@article{lyndon54,
 ISSN = {00029947},
 URL = {http://www.jstor.org/stable/1990868},
 author = {R. C. Lyndon},
 journal = {Transactions of the American Mathematical Society},
 number = {2},
 pages = {202--215},
 publisher = {American Mathematical Society},
 title = {On Burnside's Problem},
 volume = {77},
 year = {1954},
 doi = {https://doi.org/10.2307/1990868}
}