1. R. Cole, R. Hariharan, Verifying candidate matches in sparse and wildcard matching, in: Proceedings of the Annual ACM Symposium on Theory of Computing, 2002, pp. 592–601
2. M. Fischer, M. Paterson, String matching and other products, in: R. Karp (Ed.), Proceedings of the 7th SIAM–AMS Complexity of Computation, 1974, pp. 113–125
3. P. Indyk, Faster algorithms for string matching problems: Matching the convolution bound, in: Proceedings of the 38th Annual Symposium on Foundations of Computer Science, 1998, pp. 166–173
4. Efficient pattern-matching with don't cares;Kalai,2002