1. D. J. A. Welsh, Matroid Theory, Academic Press (1976).
2. T.-Y. Hwang, “Decoding linear block codes for minimizing word error rate,” IEEE Trans. Inf. Theory, IT-25, No. 6 (November 1979), 733–737.
3. J. Massey, “Minimal codewords and secret sharing,” in: Proc. Sixth Joint Swedish-Russian Workshop Inf. Theory, Mölle, Sweden (1993), pp. 246–249.
4. G. R. Blakley and G. A. Kabatianskii, “Linear algebra approach to secret sharing schemes,” in: Error Control, Cryptology, and Speech Compression, Selected papers from Int. Workshop on Inf. Protection, Moscow, Dec. 1993, Springer Lect. Notes. Comput. Sci., 829 (1994), pp. 33–40.
5. A. Ashikhmin and A. Barg, “Minimal vectors in linear codes and sharing of secrets,” Preprint 94-113, SFB 343 “Diskrete Structure in der Mathematik,” Universität Bielefeld (1994).