1. C. Bachoc, On harmonic weight enumerators of binary codes, Designs, Codes and Cryptogr., (to appear).
2. K. Betsumiya, T.A. Gulliver and M. Harada, On binary extremal formally self-dual even codes, Kyushu J. Math. (to appear).
3. K. Betsumiya and M. Harada, Binary optimal odd formally self-dual codes, (submitted).
4. A.E. Brouwer, Bounds on the size of linear codes, in Handbook of Coding Theory, V.S. Pless and W.C. Huffman (Eds.), Elsevier, Amsterdam (1998) pp. 295–461.
5. J.H. Conway and N.J.A. Sloane, A new upper bound on the minimal distance of self-dual codes, IEEE Trans. Inform. Theory Vol. 36 (1990) pp. 1319–1333.