- Boyle, Moore (1977) https://www.cs.utexas.edu/users/moore/publications/fstrpos.p...
- Knuth, Morris, Pratt (1977) https://pdfs.semanticscholar.org/4479/9559a1067e06b5a6bf052f...
- Rytter (1980) https://doi.org/10.1137/0209037 (paywalled without subscription, but you know where to find it cough scihub cough).