1. Friedman, A.D., Graham, R.L., and Ullman, J.D., Universal Single Transition Time Asynchronous State Assignments, IEEE Trans. Comp., 1969, vol. 18, no. 6, pp. 541–547.
2. Sagalovich, Yu.L., Completely Separating Systems, Probl. Peredachi Inf., 1982, vol. 18, no. 2, pp. 74–82 [Probl. Inf. Trans. (Engl. Transl.), 1982, vol. 18, no. 2, pp. 140–146].
3. Sagalovich, Yu.L., Separating Systems, Probl. Peredachi Inf., 1994, vol. 30, no. 2, pp. 14–35 [Probl. Inf. Trans. (Engl. Transl.), 1994, vol. 30, no. 2, pp. 105–123].
4. Stinson, D.R., Wei, R., and Chen, K., On Generalized Separating Hash Families, J. Combin. Theory Ser. A, 2008, vol. 115, no. 1, pp. 105–120.
5. Boneh, D. and Shaw, J., Collusion-Secure Fingerprinting for Digital Data, IEEE Trans. Inform. Theory, 1998, vol. 44, no. 5, pp. 1897–1905.