1. 1984
  2. Published

    A comparison of the cryptographic requirements for digital secure speech systems operating at different bit rates

    Mitchell, C. J., 1984, International conference on Secure Communication Systems, IEE, London, 22-23rd February 1984. IEE Press, p. 32-37 6 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  3. Published

    Group divisible designs with dual properties

    Mitchell, C. J., 1984, In : Mitteilungen aus dem Mathematischen Seminar Giessen. 165, p. 105-117 13 p.

    Research output: Contribution to journalArticle

  4. 1983
  5. Published

    Intersection numbers for coherent configurations and the spectrum of a graph

    Walter, C. D., 1983, In : Journal of Combinatorial Theory, Series B. 35, 2, p. 201-204 4 p.

    Research output: Contribution to journalArticle

  6. 1982
  7. Published

    Tactical decompositions of designs

    Beker, H. J., Mitchell, C. J. & Piper, F. C., 1982, In : Aequationes Mathematicae. 25, p. 123-152 30 p.

    Research output: Contribution to journalArticle

  8. 1980
  9. Published

    Pure fields of degree 9 with class number prime to 3

    Walter, C. D., 1980, In : Annales de l'Institut Fourier, Grenoble. 30, p. 1-16 16 p.

    Research output: Contribution to journalArticle

  10. 1979
  11. Published

    An infinite family of symmetric designs

    Mitchell, C. J., 1979, In : Discrete Mathematics. 26, p. 247-250 4 p.

    Research output: Contribution to journalArticle

  12. Published

    Brauer's class number relation

    Walter, C. D., 1979, In : Acta Arithmetica. 35, p. 33-40 8 p.

    Research output: Contribution to journalArticle

  13. Published

    Kuroda's class number relation

    Walter, C. D., 1979, In : Acta Arithmetica. 35, p. 41-51 11 p.

    Research output: Contribution to journalArticle

  14. Published

    The ambiguous class group and the genus group of certain non-normal extensions

    Walter, C. D., 1979, In : Mathematika. 26, p. 113-124 12 p.

    Research output: Contribution to journalArticle

  15. 1978
  16. Published

    A construction method for point divisible designs

    Beker, H. J. & Mitchell, C. J., 1978, In : Journal of Statistical Planning and Inference. 2, 3, p. 293-306 14 p.

    Research output: Contribution to journalArticle