@misc{indiciaef43572e5cce6, title = {Groups Whose Operators Have No More Than Three Distinct Squares.}, author = {G A Miller}, year = {1933}, doi = {10.1073/pnas.19.9.848}, url = {https://pubmed.ncbi.nlm.nih.gov/16577581/}, note = {Source identifier: 16577581} }